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Finding the Fourth Proportional to 275,685.60, 413,600.40 and 88,701.60

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Solution

The fourth proportional to 275,685.60, 413,600.40 and 88,701.60 is: 133,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,685.60 : 413,600.40 = 88,701.60 : x
  2. Step 2: Convert to fraction form
    275,685.60/413,600.40 = 88,701.60/x
  3. Step 3: Cross multiply
    275,685.60x = 413,600.40 × 88,701.60
  4. Step 4: Simplify right side
    275,685.60x = 36,687,017,240.64
  5. Step 5: Solve for x
    x = 36,687,017,240.64/275,685.60
  6. Step 6: Final answer
    x = 133,075.57

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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.