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Finding the Fourth Proportional to 518,584.27, 777,990.65 and 158,757.84

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Solution

The fourth proportional to 518,584.27, 777,990.65 and 158,757.84 is: 238,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,584.27 : 777,990.65 = 158,757.84 : x
  2. Step 2: Convert to fraction form
    518,584.27/777,990.65 = 158,757.84/x
  3. Step 3: Cross multiply
    518,584.27x = 777,990.65 × 158,757.84
  4. Step 4: Simplify right side
    518,584.27x = 123,512,119,073.70
  5. Step 5: Solve for x
    x = 123,512,119,073.70/518,584.27
  6. Step 6: Final answer
    x = 238,171.74

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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.