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Finding the Fourth Proportional to 331,751.80, 497,627.70 and 272,654.20

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Solution

The fourth proportional to 331,751.80, 497,627.70 and 272,654.20 is: 408,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,751.80 : 497,627.70 = 272,654.20 : x
  2. Step 2: Convert to fraction form
    331,751.80/497,627.70 = 272,654.20/x
  3. Step 3: Cross multiply
    331,751.80x = 497,627.70 × 272,654.20
  4. Step 4: Simplify right side
    331,751.80x = 135,680,282,441.34
  5. Step 5: Solve for x
    x = 135,680,282,441.34/331,751.80
  6. Step 6: Final answer
    x = 408,981.30

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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.