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Finding the Fourth Proportional to 299,077.72, 448,619.31 and 88,715.66

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Solution

The fourth proportional to 299,077.72, 448,619.31 and 88,715.66 is: 133,074.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,077.72 : 448,619.31 = 88,715.66 : x
  2. Step 2: Convert to fraction form
    299,077.72/448,619.31 = 88,715.66/x
  3. Step 3: Cross multiply
    299,077.72x = 448,619.31 × 88,715.66
  4. Step 4: Simplify right side
    299,077.72x = 39,799,555,932.30
  5. Step 5: Solve for x
    x = 39,799,555,932.30/299,077.72
  6. Step 6: Final answer
    x = 133,074.29

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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.