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Finding the Fourth Proportional to 614,337.70, 921,305.96 and 203,896.73

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Solution

The fourth proportional to 614,337.70, 921,305.96 and 203,896.73 is: 305,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,337.70 : 921,305.96 = 203,896.73 : x
  2. Step 2: Convert to fraction form
    614,337.70/921,305.96 = 203,896.73/x
  3. Step 3: Cross multiply
    614,337.70x = 921,305.96 × 203,896.73
  4. Step 4: Simplify right side
    614,337.70x = 187,851,272,573.51
  5. Step 5: Solve for x
    x = 187,851,272,573.51/614,337.70
  6. Step 6: Final answer
    x = 305,778.52

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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.