Home / 278,206.74-417,340.80-88,623

Finding the Fourth Proportional to 278,206.74, 417,340.80 and 88,623

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Solution

The fourth proportional to 278,206.74, 417,340.80 and 88,623 is: 132,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,206.74 : 417,340.80 = 88,623 : x
  2. Step 2: Convert to fraction form
    278,206.74/417,340.80 = 88,623/x
  3. Step 3: Cross multiply
    278,206.74x = 417,340.80 × 88,623
  4. Step 4: Simplify right side
    278,206.74x = 36,985,993,718.40
  5. Step 5: Solve for x
    x = 36,985,993,718.40/278,206.74
  6. Step 6: Final answer
    x = 132,944.28

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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.