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Finding the Fourth Proportional to 275,248.24, 379,847 and 154,416.40

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Solution

The fourth proportional to 275,248.24, 379,847 and 154,416.40 is: 213,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,248.24 : 379,847 = 154,416.40 : x
  2. Step 2: Convert to fraction form
    275,248.24/379,847 = 154,416.40/x
  3. Step 3: Cross multiply
    275,248.24x = 379,847 × 154,416.40
  4. Step 4: Simplify right side
    275,248.24x = 58,654,606,290.80
  5. Step 5: Solve for x
    x = 58,654,606,290.80/275,248.24
  6. Step 6: Final answer
    x = 213,097.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.