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Finding the Fourth Proportional to 276,343.70, 414,515.55 and 98,864.60

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Solution

The fourth proportional to 276,343.70, 414,515.55 and 98,864.60 is: 148,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,343.70 : 414,515.55 = 98,864.60 : x
  2. Step 2: Convert to fraction form
    276,343.70/414,515.55 = 98,864.60/x
  3. Step 3: Cross multiply
    276,343.70x = 414,515.55 × 98,864.60
  4. Step 4: Simplify right side
    276,343.70x = 40,980,914,044.53
  5. Step 5: Solve for x
    x = 40,980,914,044.53/276,343.70
  6. Step 6: Final answer
    x = 148,296.90

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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.