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Finding the Fourth Proportional to 275,243.80, 412,865.70 and 88,274.20

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Solution

The fourth proportional to 275,243.80, 412,865.70 and 88,274.20 is: 132,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,243.80 : 412,865.70 = 88,274.20 : x
  2. Step 2: Convert to fraction form
    275,243.80/412,865.70 = 88,274.20/x
  3. Step 3: Cross multiply
    275,243.80x = 412,865.70 × 88,274.20
  4. Step 4: Simplify right side
    275,243.80x = 36,445,389,374.94
  5. Step 5: Solve for x
    x = 36,445,389,374.94/275,243.80
  6. Step 6: Final answer
    x = 132,411.30

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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.