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Finding the Fourth Proportional to 392,299.67, 587,888.05 and 223,471.57

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Solution

The fourth proportional to 392,299.67, 587,888.05 and 223,471.57 is: 334,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,299.67 : 587,888.05 = 223,471.57 : x
  2. Step 2: Convert to fraction form
    392,299.67/587,888.05 = 223,471.57/x
  3. Step 3: Cross multiply
    392,299.67x = 587,888.05 × 223,471.57
  4. Step 4: Simplify right side
    392,299.67x = 131,376,265,517.74
  5. Step 5: Solve for x
    x = 131,376,265,517.74/392,299.67
  6. Step 6: Final answer
    x = 334,887.52

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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.