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Finding the Fourth Proportional to 276,042.60, 414,063.96 and 86,502.93

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Solution

The fourth proportional to 276,042.60, 414,063.96 and 86,502.93 is: 129,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,042.60 : 414,063.96 = 86,502.93 : x
  2. Step 2: Convert to fraction form
    276,042.60/414,063.96 = 86,502.93/x
  3. Step 3: Cross multiply
    276,042.60x = 414,063.96 × 86,502.93
  4. Step 4: Simplify right side
    276,042.60x = 35,817,745,747.40
  5. Step 5: Solve for x
    x = 35,817,745,747.40/276,042.60
  6. Step 6: Final answer
    x = 129,754.41

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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.