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Finding the Fourth Proportional to 381,087.76, 571,853.04 and 170,725.70

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Solution

The fourth proportional to 381,087.76, 571,853.04 and 170,725.70 is: 256,187.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,087.76 : 571,853.04 = 170,725.70 : x
  2. Step 2: Convert to fraction form
    381,087.76/571,853.04 = 170,725.70/x
  3. Step 3: Cross multiply
    381,087.76x = 571,853.04 × 170,725.70
  4. Step 4: Simplify right side
    381,087.76x = 97,630,010,551.13
  5. Step 5: Solve for x
    x = 97,630,010,551.13/381,087.76
  6. Step 6: Final answer
    x = 256,187.74

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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.