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Finding the Fourth Proportional to 454,992.30, 682,488.45 and 202,272.30

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Solution

The fourth proportional to 454,992.30, 682,488.45 and 202,272.30 is: 303,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,992.30 : 682,488.45 = 202,272.30 : x
  2. Step 2: Convert to fraction form
    454,992.30/682,488.45 = 202,272.30/x
  3. Step 3: Cross multiply
    454,992.30x = 682,488.45 × 202,272.30
  4. Step 4: Simplify right side
    454,992.30x = 138,048,508,504.94
  5. Step 5: Solve for x
    x = 138,048,508,504.94/454,992.30
  6. Step 6: Final answer
    x = 303,408.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.