Home / 278,169.29-417,254.23-100,634.70

Finding the Fourth Proportional to 278,169.29, 417,254.23 and 100,634.70

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Solution

The fourth proportional to 278,169.29, 417,254.23 and 100,634.70 is: 150,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,169.29 : 417,254.23 = 100,634.70 : x
  2. Step 2: Convert to fraction form
    278,169.29/417,254.23 = 100,634.70/x
  3. Step 3: Cross multiply
    278,169.29x = 417,254.23 × 100,634.70
  4. Step 4: Simplify right side
    278,169.29x = 41,990,254,259.78
  5. Step 5: Solve for x
    x = 41,990,254,259.78/278,169.29
  6. Step 6: Final answer
    x = 150,952.16

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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.