Home / 352,632.52-486,757.05-209,391.55

Finding the Fourth Proportional to 352,632.52, 486,757.05 and 209,391.55

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Solution

The fourth proportional to 352,632.52, 486,757.05 and 209,391.55 is: 289,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,632.52 : 486,757.05 = 209,391.55 : x
  2. Step 2: Convert to fraction form
    352,632.52/486,757.05 = 209,391.55/x
  3. Step 3: Cross multiply
    352,632.52x = 486,757.05 × 209,391.55
  4. Step 4: Simplify right side
    352,632.52x = 101,922,811,170.82
  5. Step 5: Solve for x
    x = 101,922,811,170.82/352,632.52
  6. Step 6: Final answer
    x = 289,034.07

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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.