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Finding the Fourth Proportional to 453,078.12, 625,263.87 and 249,144.57

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Solution

The fourth proportional to 453,078.12, 625,263.87 and 249,144.57 is: 343,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,078.12 : 625,263.87 = 249,144.57 : x
  2. Step 2: Convert to fraction form
    453,078.12/625,263.87 = 249,144.57/x
  3. Step 3: Cross multiply
    453,078.12x = 625,263.87 × 249,144.57
  4. Step 4: Simplify right side
    453,078.12x = 155,781,098,027.69
  5. Step 5: Solve for x
    x = 155,781,098,027.69/453,078.12
  6. Step 6: Final answer
    x = 343,828.34

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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.