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Finding the Fourth Proportional to 250,358.40, 375,498.32 and 81,877.36

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Solution

The fourth proportional to 250,358.40, 375,498.32 and 81,877.36 is: 122,803.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,358.40 : 375,498.32 = 81,877.36 : x
  2. Step 2: Convert to fraction form
    250,358.40/375,498.32 = 81,877.36/x
  3. Step 3: Cross multiply
    250,358.40x = 375,498.32 × 81,877.36
  4. Step 4: Simplify right side
    250,358.40x = 30,744,811,126.04
  5. Step 5: Solve for x
    x = 30,744,811,126.04/250,358.40
  6. Step 6: Final answer
    x = 122,803.19

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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.