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Finding the Fourth Proportional to 247,373.67, 371,120.96 and 78,894.01

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Solution

The fourth proportional to 247,373.67, 371,120.96 and 78,894.01 is: 118,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,373.67 : 371,120.96 = 78,894.01 : x
  2. Step 2: Convert to fraction form
    247,373.67/371,120.96 = 78,894.01/x
  3. Step 3: Cross multiply
    247,373.67x = 371,120.96 × 78,894.01
  4. Step 4: Simplify right side
    247,373.67x = 29,279,220,729.45
  5. Step 5: Solve for x
    x = 29,279,220,729.45/247,373.67
  6. Step 6: Final answer
    x = 118,360.30

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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.