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Finding the Fourth Proportional to 169,103.28, 254,049.96 and 145,484.40

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Solution

The fourth proportional to 169,103.28, 254,049.96 and 145,484.40 is: 218,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,103.28 : 254,049.96 = 145,484.40 : x
  2. Step 2: Convert to fraction form
    169,103.28/254,049.96 = 145,484.40/x
  3. Step 3: Cross multiply
    169,103.28x = 254,049.96 × 145,484.40
  4. Step 4: Simplify right side
    169,103.28x = 36,960,306,000.62
  5. Step 5: Solve for x
    x = 36,960,306,000.62/169,103.28
  6. Step 6: Final answer
    x = 218,566.46

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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.