Home / 218,919.81-328,277.65-113,710.53

Finding the Fourth Proportional to 218,919.81, 328,277.65 and 113,710.53

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Solution

The fourth proportional to 218,919.81, 328,277.65 and 113,710.53 is: 170,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,919.81 : 328,277.65 = 113,710.53 : x
  2. Step 2: Convert to fraction form
    218,919.81/328,277.65 = 113,710.53/x
  3. Step 3: Cross multiply
    218,919.81x = 328,277.65 × 113,710.53
  4. Step 4: Simplify right side
    218,919.81x = 37,328,625,568.65
  5. Step 5: Solve for x
    x = 37,328,625,568.65/218,919.81
  6. Step 6: Final answer
    x = 170,512.78

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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.