Home / 312,451.22-431,180.40-169,207.94

Finding the Fourth Proportional to 312,451.22, 431,180.40 and 169,207.94

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Solution

The fourth proportional to 312,451.22, 431,180.40 and 169,207.94 is: 233,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,451.22 : 431,180.40 = 169,207.94 : x
  2. Step 2: Convert to fraction form
    312,451.22/431,180.40 = 169,207.94/x
  3. Step 3: Cross multiply
    312,451.22x = 431,180.40 × 169,207.94
  4. Step 4: Simplify right side
    312,451.22x = 72,959,147,252.38
  5. Step 5: Solve for x
    x = 72,959,147,252.38/312,451.22
  6. Step 6: Final answer
    x = 233,505.72

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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.