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Finding the Fourth Proportional to 453,070.52, 625,221.29 and 249,120

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Solution

The fourth proportional to 453,070.52, 625,221.29 and 249,120 is: 343,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,070.52 : 625,221.29 = 249,120 : x
  2. Step 2: Convert to fraction form
    453,070.52/625,221.29 = 249,120/x
  3. Step 3: Cross multiply
    453,070.52x = 625,221.29 × 249,120
  4. Step 4: Simplify right side
    453,070.52x = 155,755,126,519.20
  5. Step 5: Solve for x
    x = 155,755,126,519.20/453,070.52
  6. Step 6: Final answer
    x = 343,776.79

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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.