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Finding the Fourth Proportional to 609.94, 914.54 and 301.12

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Solution

The fourth proportional to 609.94, 914.54 and 301.12 is: 451.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.94 : 914.54 = 301.12 : x
  2. Step 2: Convert to fraction form
    609.94/914.54 = 301.12/x
  3. Step 3: Cross multiply
    609.94x = 914.54 × 301.12
  4. Step 4: Simplify right side
    609.94x = 275,386.28
  5. Step 5: Solve for x
    x = 275,386.28/609.94
  6. Step 6: Final answer
    x = 451.50

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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.