Home / 381,975.92-527,126.62-209,904.98

Finding the Fourth Proportional to 381,975.92, 527,126.62 and 209,904.98

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Solution

The fourth proportional to 381,975.92, 527,126.62 and 209,904.98 is: 289,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,975.92 : 527,126.62 = 209,904.98 : x
  2. Step 2: Convert to fraction form
    381,975.92/527,126.62 = 209,904.98/x
  3. Step 3: Cross multiply
    381,975.92x = 527,126.62 × 209,904.98
  4. Step 4: Simplify right side
    381,975.92x = 110,646,502,628.57
  5. Step 5: Solve for x
    x = 110,646,502,628.57/381,975.92
  6. Step 6: Final answer
    x = 289,668.79

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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.