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Finding the Fourth Proportional to 100,862.55, 151,250.04 and 34,284.78

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Solution

The fourth proportional to 100,862.55, 151,250.04 and 34,284.78 is: 51,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,862.55 : 151,250.04 = 34,284.78 : x
  2. Step 2: Convert to fraction form
    100,862.55/151,250.04 = 34,284.78/x
  3. Step 3: Cross multiply
    100,862.55x = 151,250.04 × 34,284.78
  4. Step 4: Simplify right side
    100,862.55x = 5,185,574,346.39
  5. Step 5: Solve for x
    x = 5,185,574,346.39/100,862.55
  6. Step 6: Final answer
    x = 51,412.29

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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.