Home / 260,787.15-391,083.53-181,666.35

Finding the Fourth Proportional to 260,787.15, 391,083.53 and 181,666.35

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Solution

The fourth proportional to 260,787.15, 391,083.53 and 181,666.35 is: 272,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,787.15 : 391,083.53 = 181,666.35 : x
  2. Step 2: Convert to fraction form
    260,787.15/391,083.53 = 181,666.35/x
  3. Step 3: Cross multiply
    260,787.15x = 391,083.53 × 181,666.35
  4. Step 4: Simplify right side
    260,787.15x = 71,046,716,531.88
  5. Step 5: Solve for x
    x = 71,046,716,531.88/260,787.15
  6. Step 6: Final answer
    x = 272,431.81

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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.