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Finding the Fourth Proportional to 247,798.53, 371,515.98 and 79,221.83

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Solution

The fourth proportional to 247,798.53, 371,515.98 and 79,221.83 is: 118,774.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,798.53 : 371,515.98 = 79,221.83 : x
  2. Step 2: Convert to fraction form
    247,798.53/371,515.98 = 79,221.83/x
  3. Step 3: Cross multiply
    247,798.53x = 371,515.98 × 79,221.83
  4. Step 4: Simplify right side
    247,798.53x = 29,432,177,384.01
  5. Step 5: Solve for x
    x = 29,432,177,384.01/247,798.53
  6. Step 6: Final answer
    x = 118,774.63

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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.