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Finding the Fourth Proportional to 402,609.56, 603,538.88 and 136,184.70

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Solution

The fourth proportional to 402,609.56, 603,538.88 and 136,184.70 is: 204,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,609.56 : 603,538.88 = 136,184.70 : x
  2. Step 2: Convert to fraction form
    402,609.56/603,538.88 = 136,184.70/x
  3. Step 3: Cross multiply
    402,609.56x = 603,538.88 × 136,184.70
  4. Step 4: Simplify right side
    402,609.56x = 82,192,761,311.14
  5. Step 5: Solve for x
    x = 82,192,761,311.14/402,609.56
  6. Step 6: Final answer
    x = 204,150.05

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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.