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Finding the Fourth Proportional to 282,343.88, 389,634.85 and 167,645.42

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Solution

The fourth proportional to 282,343.88, 389,634.85 and 167,645.42 is: 231,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,343.88 : 389,634.85 = 167,645.42 : x
  2. Step 2: Convert to fraction form
    282,343.88/389,634.85 = 167,645.42/x
  3. Step 3: Cross multiply
    282,343.88x = 389,634.85 × 167,645.42
  4. Step 4: Simplify right side
    282,343.88x = 65,320,500,273.42
  5. Step 5: Solve for x
    x = 65,320,500,273.42/282,343.88
  6. Step 6: Final answer
    x = 231,350.86

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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.