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Finding the Fourth Proportional to 560,581.67, 840,372.53 and 205,512.90

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Solution

The fourth proportional to 560,581.67, 840,372.53 and 205,512.90 is: 308,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,581.67 : 840,372.53 = 205,512.90 : x
  2. Step 2: Convert to fraction form
    560,581.67/840,372.53 = 205,512.90/x
  3. Step 3: Cross multiply
    560,581.67x = 840,372.53 × 205,512.90
  4. Step 4: Simplify right side
    560,581.67x = 172,707,394,693.07
  5. Step 5: Solve for x
    x = 172,707,394,693.07/560,581.67
  6. Step 6: Final answer
    x = 308,086.06

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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.