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Finding the Fourth Proportional to 360,755.98, 497,764.25 and 215,539.97

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Solution

The fourth proportional to 360,755.98, 497,764.25 and 215,539.97 is: 297,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,755.98 : 497,764.25 = 215,539.97 : x
  2. Step 2: Convert to fraction form
    360,755.98/497,764.25 = 215,539.97/x
  3. Step 3: Cross multiply
    360,755.98x = 497,764.25 × 215,539.97
  4. Step 4: Simplify right side
    360,755.98x = 107,288,091,678.78
  5. Step 5: Solve for x
    x = 107,288,091,678.78/360,755.98
  6. Step 6: Final answer
    x = 297,397.96

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1.5x scale

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.