Home / 274,667.04-379,078.92-198,432.78

Finding the Fourth Proportional to 274,667.04, 379,078.92 and 198,432.78

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Solution

The fourth proportional to 274,667.04, 379,078.92 and 198,432.78 is: 273,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,667.04 : 379,078.92 = 198,432.78 : x
  2. Step 2: Convert to fraction form
    274,667.04/379,078.92 = 198,432.78/x
  3. Step 3: Cross multiply
    274,667.04x = 379,078.92 × 198,432.78
  4. Step 4: Simplify right side
    274,667.04x = 75,221,683,935.00
  5. Step 5: Solve for x
    x = 75,221,683,935.00/274,667.04
  6. Step 6: Final answer
    x = 273,864.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.