Home / 381,917.68-527,031.66-212,162.56

Finding the Fourth Proportional to 381,917.68, 527,031.66 and 212,162.56

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Solution

The fourth proportional to 381,917.68, 527,031.66 and 212,162.56 is: 292,776.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,917.68 : 527,031.66 = 212,162.56 : x
  2. Step 2: Convert to fraction form
    381,917.68/527,031.66 = 212,162.56/x
  3. Step 3: Cross multiply
    381,917.68x = 527,031.66 × 212,162.56
  4. Step 4: Simplify right side
    381,917.68x = 111,816,386,186.65
  5. Step 5: Solve for x
    x = 111,816,386,186.65/381,917.68
  6. Step 6: Final answer
    x = 292,776.15

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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.