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Finding the Fourth Proportional to 299,373.40, 447,764.10 and 268,010.20

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Solution

The fourth proportional to 299,373.40, 447,764.10 and 268,010.20 is: 400,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,373.40 : 447,764.10 = 268,010.20 : x
  2. Step 2: Convert to fraction form
    299,373.40/447,764.10 = 268,010.20/x
  3. Step 3: Cross multiply
    299,373.40x = 447,764.10 × 268,010.20
  4. Step 4: Simplify right side
    299,373.40x = 120,005,345,993.82
  5. Step 5: Solve for x
    x = 120,005,345,993.82/299,373.40
  6. Step 6: Final answer
    x = 400,855.07

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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.