Home / 312,868.83-431,767.49-176,923.12

Finding the Fourth Proportional to 312,868.83, 431,767.49 and 176,923.12

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Solution

The fourth proportional to 312,868.83, 431,767.49 and 176,923.12 is: 244,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,868.83 : 431,767.49 = 176,923.12 : x
  2. Step 2: Convert to fraction form
    312,868.83/431,767.49 = 176,923.12/x
  3. Step 3: Cross multiply
    312,868.83x = 431,767.49 × 176,923.12
  4. Step 4: Simplify right side
    312,868.83x = 76,389,651,445.37
  5. Step 5: Solve for x
    x = 76,389,651,445.37/312,868.83
  6. Step 6: Final answer
    x = 244,158.71

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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.