Home / 312,868.29-431,767.35-176,899.32

Finding the Fourth Proportional to 312,868.29, 431,767.35 and 176,899.32

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Solution

The fourth proportional to 312,868.29, 431,767.35 and 176,899.32 is: 244,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,868.29 : 431,767.35 = 176,899.32 : x
  2. Step 2: Convert to fraction form
    312,868.29/431,767.35 = 176,899.32/x
  3. Step 3: Cross multiply
    312,868.29x = 431,767.35 × 176,899.32
  4. Step 4: Simplify right side
    312,868.29x = 76,379,350,613.20
  5. Step 5: Solve for x
    x = 76,379,350,613.20/312,868.29
  6. Step 6: Final answer
    x = 244,126.21

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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.