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Finding the Fourth Proportional to 247,477.70, 371,216.55 and 89,711.30

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Solution

The fourth proportional to 247,477.70, 371,216.55 and 89,711.30 is: 134,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,477.70 : 371,216.55 = 89,711.30 : x
  2. Step 2: Convert to fraction form
    247,477.70/371,216.55 = 89,711.30/x
  3. Step 3: Cross multiply
    247,477.70x = 371,216.55 × 89,711.30
  4. Step 4: Simplify right side
    247,477.70x = 33,302,319,282.02
  5. Step 5: Solve for x
    x = 33,302,319,282.02/247,477.70
  6. Step 6: Final answer
    x = 134,566.95

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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.