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Finding the Fourth Proportional to 247,279.44, 370,915.10 and 78,797.50

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Solution

The fourth proportional to 247,279.44, 370,915.10 and 78,797.50 is: 118,194.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,279.44 : 370,915.10 = 78,797.50 : x
  2. Step 2: Convert to fraction form
    247,279.44/370,915.10 = 78,797.50/x
  3. Step 3: Cross multiply
    247,279.44x = 370,915.10 × 78,797.50
  4. Step 4: Simplify right side
    247,279.44x = 29,227,182,592.25
  5. Step 5: Solve for x
    x = 29,227,182,592.25/247,279.44
  6. Step 6: Final answer
    x = 118,194.96

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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.