Home / 381,521.10-571,168.33-285,882.22

Finding the Fourth Proportional to 381,521.10, 571,168.33 and 285,882.22

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Solution

The fourth proportional to 381,521.10, 571,168.33 and 285,882.22 is: 427,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,521.10 : 571,168.33 = 285,882.22 : x
  2. Step 2: Convert to fraction form
    381,521.10/571,168.33 = 285,882.22/x
  3. Step 3: Cross multiply
    381,521.10x = 571,168.33 × 285,882.22
  4. Step 4: Simplify right side
    381,521.10x = 163,286,870,174.09
  5. Step 5: Solve for x
    x = 163,286,870,174.09/381,521.10
  6. Step 6: Final answer
    x = 427,989.09

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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.