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Finding the Fourth Proportional to 491,998.98, 737,505.18 and 171,902.40

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Solution

The fourth proportional to 491,998.98, 737,505.18 and 171,902.40 is: 257,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,998.98 : 737,505.18 = 171,902.40 : x
  2. Step 2: Convert to fraction form
    491,998.98/737,505.18 = 171,902.40/x
  3. Step 3: Cross multiply
    491,998.98x = 737,505.18 × 171,902.40
  4. Step 4: Simplify right side
    491,998.98x = 126,778,910,454.43
  5. Step 5: Solve for x
    x = 126,778,910,454.43/491,998.98
  6. Step 6: Final answer
    x = 257,681.25

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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.