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Finding the Fourth Proportional to 253,134.30, 379,701.45 and 164,487.90

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Solution

The fourth proportional to 253,134.30, 379,701.45 and 164,487.90 is: 246,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,134.30 : 379,701.45 = 164,487.90 : x
  2. Step 2: Convert to fraction form
    253,134.30/379,701.45 = 164,487.90/x
  3. Step 3: Cross multiply
    253,134.30x = 379,701.45 × 164,487.90
  4. Step 4: Simplify right side
    253,134.30x = 62,456,294,137.46
  5. Step 5: Solve for x
    x = 62,456,294,137.46/253,134.30
  6. Step 6: Final answer
    x = 246,731.85

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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.