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Finding the Fourth Proportional to 275,515.80, 413,377.60 and 187,598.40

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Solution

The fourth proportional to 275,515.80, 413,377.60 and 187,598.40 is: 281,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,515.80 : 413,377.60 = 187,598.40 : x
  2. Step 2: Convert to fraction form
    275,515.80/413,377.60 = 187,598.40/x
  3. Step 3: Cross multiply
    275,515.80x = 413,377.60 × 187,598.40
  4. Step 4: Simplify right side
    275,515.80x = 77,548,976,355.84
  5. Step 5: Solve for x
    x = 77,548,976,355.84/275,515.80
  6. Step 6: Final answer
    x = 281,468.35

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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.