Home / 218,922.81-328,282.15-113,713.53

Finding the Fourth Proportional to 218,922.81, 328,282.15 and 113,713.53

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Solution

The fourth proportional to 218,922.81, 328,282.15 and 113,713.53 is: 170,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,922.81 : 328,282.15 = 113,713.53 : x
  2. Step 2: Convert to fraction form
    218,922.81/328,282.15 = 113,713.53/x
  3. Step 3: Cross multiply
    218,922.81x = 328,282.15 × 113,713.53
  4. Step 4: Simplify right side
    218,922.81x = 37,330,122,112.49
  5. Step 5: Solve for x
    x = 37,330,122,112.49/218,922.81
  6. Step 6: Final answer
    x = 170,517.28

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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.