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Finding the Fourth Proportional to 276,068.60, 414,102.90 and 98,660.60

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Solution

The fourth proportional to 276,068.60, 414,102.90 and 98,660.60 is: 147,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,068.60 : 414,102.90 = 98,660.60 : x
  2. Step 2: Convert to fraction form
    276,068.60/414,102.90 = 98,660.60/x
  3. Step 3: Cross multiply
    276,068.60x = 414,102.90 × 98,660.60
  4. Step 4: Simplify right side
    276,068.60x = 40,855,640,575.74
  5. Step 5: Solve for x
    x = 40,855,640,575.74/276,068.60
  6. Step 6: Final answer
    x = 147,990.90

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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.