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Finding the Fourth Proportional to 299,116.68, 448,675.20 and 88,752.75

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Solution

The fourth proportional to 299,116.68, 448,675.20 and 88,752.75 is: 133,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,116.68 : 448,675.20 = 88,752.75 : x
  2. Step 2: Convert to fraction form
    299,116.68/448,675.20 = 88,752.75/x
  3. Step 3: Cross multiply
    299,116.68x = 448,675.20 × 88,752.75
  4. Step 4: Simplify right side
    299,116.68x = 39,821,157,856.80
  5. Step 5: Solve for x
    x = 39,821,157,856.80/299,116.68
  6. Step 6: Final answer
    x = 133,129.18

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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.