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Finding the Fourth Proportional to 381,254.39, 571,885.71 and 115,017.22

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Solution

The fourth proportional to 381,254.39, 571,885.71 and 115,017.22 is: 172,527.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,254.39 : 571,885.71 = 115,017.22 : x
  2. Step 2: Convert to fraction form
    381,254.39/571,885.71 = 115,017.22/x
  3. Step 3: Cross multiply
    381,254.39x = 571,885.71 × 115,017.22
  4. Step 4: Simplify right side
    381,254.39x = 65,776,704,521.93
  5. Step 5: Solve for x
    x = 65,776,704,521.93/381,254.39
  6. Step 6: Final answer
    x = 172,527.07

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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.