Home / 247,623.20-371,391.60-89,770.40

Finding the Fourth Proportional to 247,623.20, 371,391.60 and 89,770.40

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Solution

The fourth proportional to 247,623.20, 371,391.60 and 89,770.40 is: 134,639.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,623.20 : 371,391.60 = 89,770.40 : x
  2. Step 2: Convert to fraction form
    247,623.20/371,391.60 = 89,770.40/x
  3. Step 3: Cross multiply
    247,623.20x = 371,391.60 × 89,770.40
  4. Step 4: Simplify right side
    247,623.20x = 33,339,972,488.64
  5. Step 5: Solve for x
    x = 33,339,972,488.64/247,623.20
  6. Step 6: Final answer
    x = 134,639.94

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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.