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Finding the Fourth Proportional to 231,038.40, 346,568.40 and 73,279.20

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Solution

The fourth proportional to 231,038.40, 346,568.40 and 73,279.20 is: 109,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,038.40 : 346,568.40 = 73,279.20 : x
  2. Step 2: Convert to fraction form
    231,038.40/346,568.40 = 73,279.20/x
  3. Step 3: Cross multiply
    231,038.40x = 346,568.40 × 73,279.20
  4. Step 4: Simplify right side
    231,038.40x = 25,396,255,097.28
  5. Step 5: Solve for x
    x = 25,396,255,097.28/231,038.40
  6. Step 6: Final answer
    x = 109,922.23

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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.