Home / 278,292.15-417,439.22-67,930.07

Finding the Fourth Proportional to 278,292.15, 417,439.22 and 67,930.07

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Solution

The fourth proportional to 278,292.15, 417,439.22 and 67,930.07 is: 101,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,292.15 : 417,439.22 = 67,930.07 : x
  2. Step 2: Convert to fraction form
    278,292.15/417,439.22 = 67,930.07/x
  3. Step 3: Cross multiply
    278,292.15x = 417,439.22 × 67,930.07
  4. Step 4: Simplify right side
    278,292.15x = 28,356,673,008.50
  5. Step 5: Solve for x
    x = 28,356,673,008.50/278,292.15
  6. Step 6: Final answer
    x = 101,895.34

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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.