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Finding the Fourth Proportional to 453,064.64, 625,231.53 and 249,128.71

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Solution

The fourth proportional to 453,064.64, 625,231.53 and 249,128.71 is: 343,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,064.64 : 625,231.53 = 249,128.71 : x
  2. Step 2: Convert to fraction form
    453,064.64/625,231.53 = 249,128.71/x
  3. Step 3: Cross multiply
    453,064.64x = 625,231.53 × 249,128.71
  4. Step 4: Simplify right side
    453,064.64x = 155,763,122,957.15
  5. Step 5: Solve for x
    x = 155,763,122,957.15/453,064.64
  6. Step 6: Final answer
    x = 343,798.90

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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.