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Finding the Fourth Proportional to 456,689.27, 630,221.24 and 249,956.66

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Solution

The fourth proportional to 456,689.27, 630,221.24 and 249,956.66 is: 344,934.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,689.27 : 630,221.24 = 249,956.66 : x
  2. Step 2: Convert to fraction form
    456,689.27/630,221.24 = 249,956.66/x
  3. Step 3: Cross multiply
    456,689.27x = 630,221.24 × 249,956.66
  4. Step 4: Simplify right side
    456,689.27x = 157,527,998,411.90
  5. Step 5: Solve for x
    x = 157,527,998,411.90/456,689.27
  6. Step 6: Final answer
    x = 344,934.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.