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Finding the Fourth Proportional to 438,902.01, 658,221.79 and 228,425.13

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Solution

The fourth proportional to 438,902.01, 658,221.79 and 228,425.13 is: 342,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,902.01 : 658,221.79 = 228,425.13 : x
  2. Step 2: Convert to fraction form
    438,902.01/658,221.79 = 228,425.13/x
  3. Step 3: Cross multiply
    438,902.01x = 658,221.79 × 228,425.13
  4. Step 4: Simplify right side
    438,902.01x = 150,354,397,949.58
  5. Step 5: Solve for x
    x = 150,354,397,949.58/438,902.01
  6. Step 6: Final answer
    x = 342,569.40

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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.