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Finding the Fourth Proportional to 276,069.80, 414,104.70 and 89,081.30

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Solution

The fourth proportional to 276,069.80, 414,104.70 and 89,081.30 is: 133,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,069.80 : 414,104.70 = 89,081.30 : x
  2. Step 2: Convert to fraction form
    276,069.80/414,104.70 = 89,081.30/x
  3. Step 3: Cross multiply
    276,069.80x = 414,104.70 × 89,081.30
  4. Step 4: Simplify right side
    276,069.80x = 36,888,985,012.11
  5. Step 5: Solve for x
    x = 36,888,985,012.11/276,069.80
  6. Step 6: Final answer
    x = 133,621.95

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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.