Home / 278,214.52-417,181.46-198,206.78

Finding the Fourth Proportional to 278,214.52, 417,181.46 and 198,206.78

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Solution

The fourth proportional to 278,214.52, 417,181.46 and 198,206.78 is: 297,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,214.52 : 417,181.46 = 198,206.78 : x
  2. Step 2: Convert to fraction form
    278,214.52/417,181.46 = 198,206.78/x
  3. Step 3: Cross multiply
    278,214.52x = 417,181.46 × 198,206.78
  4. Step 4: Simplify right side
    278,214.52x = 82,688,193,862.30
  5. Step 5: Solve for x
    x = 82,688,193,862.30/278,214.52
  6. Step 6: Final answer
    x = 297,210.20

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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.