Home / 387,826.26-581,324.31-187,872.18

Finding the Fourth Proportional to 387,826.26, 581,324.31 and 187,872.18

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Solution

The fourth proportional to 387,826.26, 581,324.31 and 187,872.18 is: 281,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,826.26 : 581,324.31 = 187,872.18 : x
  2. Step 2: Convert to fraction form
    387,826.26/581,324.31 = 187,872.18/x
  3. Step 3: Cross multiply
    387,826.26x = 581,324.31 × 187,872.18
  4. Step 4: Simplify right side
    387,826.26x = 109,214,665,406.70
  5. Step 5: Solve for x
    x = 109,214,665,406.70/387,826.26
  6. Step 6: Final answer
    x = 281,607.20

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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.