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Finding the Fourth Proportional to 296,512.80, 408,780.90 and 187,562.94

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Solution

The fourth proportional to 296,512.80, 408,780.90 and 187,562.94 is: 258,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,512.80 : 408,780.90 = 187,562.94 : x
  2. Step 2: Convert to fraction form
    296,512.80/408,780.90 = 187,562.94/x
  3. Step 3: Cross multiply
    296,512.80x = 408,780.90 × 187,562.94
  4. Step 4: Simplify right side
    296,512.80x = 76,672,147,419.85
  5. Step 5: Solve for x
    x = 76,672,147,419.85/296,512.80
  6. Step 6: Final answer
    x = 258,579.55

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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.