Home / 278,118.50-417,039.73-88,554.17

Finding the Fourth Proportional to 278,118.50, 417,039.73 and 88,554.17

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Solution

The fourth proportional to 278,118.50, 417,039.73 and 88,554.17 is: 132,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,118.50 : 417,039.73 = 88,554.17 : x
  2. Step 2: Convert to fraction form
    278,118.50/417,039.73 = 88,554.17/x
  3. Step 3: Cross multiply
    278,118.50x = 417,039.73 × 88,554.17
  4. Step 4: Simplify right side
    278,118.50x = 36,930,607,147.17
  5. Step 5: Solve for x
    x = 36,930,607,147.17/278,118.50
  6. Step 6: Final answer
    x = 132,787.31

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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.