Home / 312,867.35-431,730.37-176,882.42

Finding the Fourth Proportional to 312,867.35, 431,730.37 and 176,882.42

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Solution

The fourth proportional to 312,867.35, 431,730.37 and 176,882.42 is: 244,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,867.35 : 431,730.37 = 176,882.42 : x
  2. Step 2: Convert to fraction form
    312,867.35/431,730.37 = 176,882.42/x
  3. Step 3: Cross multiply
    312,867.35x = 431,730.37 × 176,882.42
  4. Step 4: Simplify right side
    312,867.35x = 76,365,512,633.10
  5. Step 5: Solve for x
    x = 76,365,512,633.10/312,867.35
  6. Step 6: Final answer
    x = 244,082.72

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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.