Home / 247,749.67-371,679.87-79,280.11

Finding the Fourth Proportional to 247,749.67, 371,679.87 and 79,280.11

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Solution

The fourth proportional to 247,749.67, 371,679.87 and 79,280.11 is: 118,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,749.67 : 371,679.87 = 79,280.11 : x
  2. Step 2: Convert to fraction form
    247,749.67/371,679.87 = 79,280.11/x
  3. Step 3: Cross multiply
    247,749.67x = 371,679.87 × 79,280.11
  4. Step 4: Simplify right side
    247,749.67x = 29,466,819,318.19
  5. Step 5: Solve for x
    x = 29,466,819,318.19/247,749.67
  6. Step 6: Final answer
    x = 118,937.88

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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.