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Finding the Fourth Proportional to 231,344.40, 346,843.80 and 98,115.60

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Solution

The fourth proportional to 231,344.40, 346,843.80 and 98,115.60 is: 147,100.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,344.40 : 346,843.80 = 98,115.60 : x
  2. Step 2: Convert to fraction form
    231,344.40/346,843.80 = 98,115.60/x
  3. Step 3: Cross multiply
    231,344.40x = 346,843.80 × 98,115.60
  4. Step 4: Simplify right side
    231,344.40x = 34,030,787,543.28
  5. Step 5: Solve for x
    x = 34,030,787,543.28/231,344.40
  6. Step 6: Final answer
    x = 147,100.11

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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.