Home / 278,411.91-417,079.75-166,181.55

Finding the Fourth Proportional to 278,411.91, 417,079.75 and 166,181.55

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Solution

The fourth proportional to 278,411.91, 417,079.75 and 166,181.55 is: 248,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,411.91 : 417,079.75 = 166,181.55 : x
  2. Step 2: Convert to fraction form
    278,411.91/417,079.75 = 166,181.55/x
  3. Step 3: Cross multiply
    278,411.91x = 417,079.75 × 166,181.55
  4. Step 4: Simplify right side
    278,411.91x = 69,310,959,328.61
  5. Step 5: Solve for x
    x = 69,310,959,328.61/278,411.91
  6. Step 6: Final answer
    x = 248,951.13

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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.