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Finding the Fourth Proportional to 275,352.68, 412,989.98 and 88,339.88

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Solution

The fourth proportional to 275,352.68, 412,989.98 and 88,339.88 is: 132,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,352.68 : 412,989.98 = 88,339.88 : x
  2. Step 2: Convert to fraction form
    275,352.68/412,989.98 = 88,339.88/x
  3. Step 3: Cross multiply
    275,352.68x = 412,989.98 × 88,339.88
  4. Step 4: Simplify right side
    275,352.68x = 36,483,485,274.40
  5. Step 5: Solve for x
    x = 36,483,485,274.40/275,352.68
  6. Step 6: Final answer
    x = 132,497.30

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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.