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Finding the Fourth Proportional to 343,898.56, 516,387.12 and 291,280.24

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Solution

The fourth proportional to 343,898.56, 516,387.12 and 291,280.24 is: 437,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,898.56 : 516,387.12 = 291,280.24 : x
  2. Step 2: Convert to fraction form
    343,898.56/516,387.12 = 291,280.24/x
  3. Step 3: Cross multiply
    343,898.56x = 516,387.12 × 291,280.24
  4. Step 4: Simplify right side
    343,898.56x = 150,413,364,246.51
  5. Step 5: Solve for x
    x = 150,413,364,246.51/343,898.56
  6. Step 6: Final answer
    x = 437,377.13

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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.