Home / 258,913.35-387,872.46-158,781.56

Finding the Fourth Proportional to 258,913.35, 387,872.46 and 158,781.56

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Solution

The fourth proportional to 258,913.35, 387,872.46 and 158,781.56 is: 237,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,913.35 : 387,872.46 = 158,781.56 : x
  2. Step 2: Convert to fraction form
    258,913.35/387,872.46 = 158,781.56/x
  3. Step 3: Cross multiply
    258,913.35x = 387,872.46 × 158,781.56
  4. Step 4: Simplify right side
    258,913.35x = 61,586,992,340.48
  5. Step 5: Solve for x
    x = 61,586,992,340.48/258,913.35
  6. Step 6: Final answer
    x = 237,867.20

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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.