Home / 218,872.24-328,308.72-125,313.28

Finding the Fourth Proportional to 218,872.24, 328,308.72 and 125,313.28

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Solution

The fourth proportional to 218,872.24, 328,308.72 and 125,313.28 is: 187,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,872.24 : 328,308.72 = 125,313.28 : x
  2. Step 2: Convert to fraction form
    218,872.24/328,308.72 = 125,313.28/x
  3. Step 3: Cross multiply
    218,872.24x = 328,308.72 × 125,313.28
  4. Step 4: Simplify right side
    218,872.24x = 41,141,442,555.80
  5. Step 5: Solve for x
    x = 41,141,442,555.80/218,872.24
  6. Step 6: Final answer
    x = 187,970.13

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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.