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Finding the Fourth Proportional to 264,574.71, 396,997.71 and 129,636.18

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Solution

The fourth proportional to 264,574.71, 396,997.71 and 129,636.18 is: 194,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,574.71 : 396,997.71 = 129,636.18 : x
  2. Step 2: Convert to fraction form
    264,574.71/396,997.71 = 129,636.18/x
  3. Step 3: Cross multiply
    264,574.71x = 396,997.71 × 129,636.18
  4. Step 4: Simplify right side
    264,574.71x = 51,465,266,593.15
  5. Step 5: Solve for x
    x = 51,465,266,593.15/264,574.71
  6. Step 6: Final answer
    x = 194,520.73

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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.