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Finding the Fourth Proportional to 165,864.40, 248,267.40 and 130,872.40

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Solution

The fourth proportional to 165,864.40, 248,267.40 and 130,872.40 is: 195,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,864.40 : 248,267.40 = 130,872.40 : x
  2. Step 2: Convert to fraction form
    165,864.40/248,267.40 = 130,872.40/x
  3. Step 3: Cross multiply
    165,864.40x = 248,267.40 × 130,872.40
  4. Step 4: Simplify right side
    165,864.40x = 32,491,350,479.76
  5. Step 5: Solve for x
    x = 32,491,350,479.76/165,864.40
  6. Step 6: Final answer
    x = 195,891.04

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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.