Home / 218,785.30-328,177.95-124,306.90

Finding the Fourth Proportional to 218,785.30, 328,177.95 and 124,306.90

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Solution

The fourth proportional to 218,785.30, 328,177.95 and 124,306.90 is: 186,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,785.30 : 328,177.95 = 124,306.90 : x
  2. Step 2: Convert to fraction form
    218,785.30/328,177.95 = 124,306.90/x
  3. Step 3: Cross multiply
    218,785.30x = 328,177.95 × 124,306.90
  4. Step 4: Simplify right side
    218,785.30x = 40,794,783,612.86
  5. Step 5: Solve for x
    x = 40,794,783,612.86/218,785.30
  6. Step 6: Final answer
    x = 186,460.35

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1.5x scale

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.