Home / 382,401.38-527,726.79-210,332.65

Finding the Fourth Proportional to 382,401.38, 527,726.79 and 210,332.65

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Solution

The fourth proportional to 382,401.38, 527,726.79 and 210,332.65 is: 290,266.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,401.38 : 527,726.79 = 210,332.65 : x
  2. Step 2: Convert to fraction form
    382,401.38/527,726.79 = 210,332.65/x
  3. Step 3: Cross multiply
    382,401.38x = 527,726.79 × 210,332.65
  4. Step 4: Simplify right side
    382,401.38x = 110,998,176,990.82
  5. Step 5: Solve for x
    x = 110,998,176,990.82/382,401.38
  6. Step 6: Final answer
    x = 290,266.15

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1.5x scale

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.