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Finding the Fourth Proportional to 275,503.20, 413,215.56 and 88,490.40

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Solution

The fourth proportional to 275,503.20, 413,215.56 and 88,490.40 is: 132,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,503.20 : 413,215.56 = 88,490.40 : x
  2. Step 2: Convert to fraction form
    275,503.20/413,215.56 = 88,490.40/x
  3. Step 3: Cross multiply
    275,503.20x = 413,215.56 × 88,490.40
  4. Step 4: Simplify right side
    275,503.20x = 36,565,610,190.62
  5. Step 5: Solve for x
    x = 36,565,610,190.62/275,503.20
  6. Step 6: Final answer
    x = 132,723.00

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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.