Home / 381,052.73-571,374.57-128,248.90

Finding the Fourth Proportional to 381,052.73, 571,374.57 and 128,248.90

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Solution

The fourth proportional to 381,052.73, 571,374.57 and 128,248.90 is: 192,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,052.73 : 571,374.57 = 128,248.90 : x
  2. Step 2: Convert to fraction form
    381,052.73/571,374.57 = 128,248.90/x
  3. Step 3: Cross multiply
    381,052.73x = 571,374.57 × 128,248.90
  4. Step 4: Simplify right side
    381,052.73x = 73,278,160,090.47
  5. Step 5: Solve for x
    x = 73,278,160,090.47/381,052.73
  6. Step 6: Final answer
    x = 192,304.51

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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.