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Finding the Fourth Proportional to 311,255.71, 429,534.34 and 175,291.97

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Solution

The fourth proportional to 311,255.71, 429,534.34 and 175,291.97 is: 241,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,255.71 : 429,534.34 = 175,291.97 : x
  2. Step 2: Convert to fraction form
    311,255.71/429,534.34 = 175,291.97/x
  3. Step 3: Cross multiply
    311,255.71x = 429,534.34 × 175,291.97
  4. Step 4: Simplify right side
    311,255.71x = 75,293,922,665.56
  5. Step 5: Solve for x
    x = 75,293,922,665.56/311,255.71
  6. Step 6: Final answer
    x = 241,903.75

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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.