Home / 247,583.20-371,331.60-89,730.40

Finding the Fourth Proportional to 247,583.20, 371,331.60 and 89,730.40

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Solution

The fourth proportional to 247,583.20, 371,331.60 and 89,730.40 is: 134,579.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,583.20 : 371,331.60 = 89,730.40 : x
  2. Step 2: Convert to fraction form
    247,583.20/371,331.60 = 89,730.40/x
  3. Step 3: Cross multiply
    247,583.20x = 371,331.60 × 89,730.40
  4. Step 4: Simplify right side
    247,583.20x = 33,319,733,000.64
  5. Step 5: Solve for x
    x = 33,319,733,000.64/247,583.20
  6. Step 6: Final answer
    x = 134,579.94

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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.