Home / 278,212.52-417,178.45-198,204.77

Finding the Fourth Proportional to 278,212.52, 417,178.45 and 198,204.77

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Solution

The fourth proportional to 278,212.52, 417,178.45 and 198,204.77 is: 297,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,212.52 : 417,178.45 = 198,204.77 : x
  2. Step 2: Convert to fraction form
    278,212.52/417,178.45 = 198,204.77/x
  3. Step 3: Cross multiply
    278,212.52x = 417,178.45 × 198,204.77
  4. Step 4: Simplify right side
    278,212.52x = 82,686,760,021.91
  5. Step 5: Solve for x
    x = 82,686,760,021.91/278,212.52
  6. Step 6: Final answer
    x = 297,207.18

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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.