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Finding the Fourth Proportional to 275,428.04, 413,160.86 and 88,428.20

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Solution

The fourth proportional to 275,428.04, 413,160.86 and 88,428.20 is: 132,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,428.04 : 413,160.86 = 88,428.20 : x
  2. Step 2: Convert to fraction form
    275,428.04/413,160.86 = 88,428.20/x
  3. Step 3: Cross multiply
    275,428.04x = 413,160.86 × 88,428.20
  4. Step 4: Simplify right side
    275,428.04x = 36,535,071,160.25
  5. Step 5: Solve for x
    x = 36,535,071,160.25/275,428.04
  6. Step 6: Final answer
    x = 132,648.34

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1.5x scale

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.