Home / 218,675.28-328,021.56-60,917.52

Finding the Fourth Proportional to 218,675.28, 328,021.56 and 60,917.52

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Solution

The fourth proportional to 218,675.28, 328,021.56 and 60,917.52 is: 91,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,675.28 : 328,021.56 = 60,917.52 : x
  2. Step 2: Convert to fraction form
    218,675.28/328,021.56 = 60,917.52/x
  3. Step 3: Cross multiply
    218,675.28x = 328,021.56 × 60,917.52
  4. Step 4: Simplify right side
    218,675.28x = 19,982,259,941.73
  5. Step 5: Solve for x
    x = 19,982,259,941.73/218,675.28
  6. Step 6: Final answer
    x = 91,378.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.