Home / 218,964.88-328,150-124,150.24

Finding the Fourth Proportional to 218,964.88, 328,150 and 124,150.24

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Solution

The fourth proportional to 218,964.88, 328,150 and 124,150.24 is: 186,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,964.88 : 328,150 = 124,150.24 : x
  2. Step 2: Convert to fraction form
    218,964.88/328,150 = 124,150.24/x
  3. Step 3: Cross multiply
    218,964.88x = 328,150 × 124,150.24
  4. Step 4: Simplify right side
    218,964.88x = 40,739,901,256
  5. Step 5: Solve for x
    x = 40,739,901,256/218,964.88
  6. Step 6: Final answer
    x = 186,056.78

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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.