Home / 230,821.88-318,678.20-149,192.86

Finding the Fourth Proportional to 230,821.88, 318,678.20 and 149,192.86

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Solution

The fourth proportional to 230,821.88, 318,678.20 and 149,192.86 is: 205,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,821.88 : 318,678.20 = 149,192.86 : x
  2. Step 2: Convert to fraction form
    230,821.88/318,678.20 = 149,192.86/x
  3. Step 3: Cross multiply
    230,821.88x = 318,678.20 × 149,192.86
  4. Step 4: Simplify right side
    230,821.88x = 47,544,512,077.65
  5. Step 5: Solve for x
    x = 47,544,512,077.65/230,821.88
  6. Step 6: Final answer
    x = 205,979.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.