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Finding the Fourth Proportional to 275,697.80, 413,546.70 and 187,224.20

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Solution

The fourth proportional to 275,697.80, 413,546.70 and 187,224.20 is: 280,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,697.80 : 413,546.70 = 187,224.20 : x
  2. Step 2: Convert to fraction form
    275,697.80/413,546.70 = 187,224.20/x
  3. Step 3: Cross multiply
    275,697.80x = 413,546.70 × 187,224.20
  4. Step 4: Simplify right side
    275,697.80x = 77,425,950,070.14
  5. Step 5: Solve for x
    x = 77,425,950,070.14/275,697.80
  6. Step 6: Final answer
    x = 280,836.30

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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.