Home / 381,290.10-571,279.05-248,101.80

Finding the Fourth Proportional to 381,290.10, 571,279.05 and 248,101.80

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Solution

The fourth proportional to 381,290.10, 571,279.05 and 248,101.80 is: 371,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,290.10 : 571,279.05 = 248,101.80 : x
  2. Step 2: Convert to fraction form
    381,290.10/571,279.05 = 248,101.80/x
  3. Step 3: Cross multiply
    381,290.10x = 571,279.05 × 248,101.80
  4. Step 4: Simplify right side
    381,290.10x = 141,735,360,607.29
  5. Step 5: Solve for x
    x = 141,735,360,607.29/381,290.10
  6. Step 6: Final answer
    x = 371,725.78

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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.