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Finding the Fourth Proportional to 257,950.27, 386,575.45 and 145,574.92

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Solution

The fourth proportional to 257,950.27, 386,575.45 and 145,574.92 is: 218,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,950.27 : 386,575.45 = 145,574.92 : x
  2. Step 2: Convert to fraction form
    257,950.27/386,575.45 = 145,574.92/x
  3. Step 3: Cross multiply
    257,950.27x = 386,575.45 × 145,574.92
  4. Step 4: Simplify right side
    257,950.27x = 56,275,690,207.71
  5. Step 5: Solve for x
    x = 56,275,690,207.71/257,950.27
  6. Step 6: Final answer
    x = 218,164.88

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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.