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Finding the Fourth Proportional to 215,251.80, 322,877.70 and 185,727.30

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Solution

The fourth proportional to 215,251.80, 322,877.70 and 185,727.30 is: 278,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,251.80 : 322,877.70 = 185,727.30 : x
  2. Step 2: Convert to fraction form
    215,251.80/322,877.70 = 185,727.30/x
  3. Step 3: Cross multiply
    215,251.80x = 322,877.70 × 185,727.30
  4. Step 4: Simplify right side
    215,251.80x = 59,967,203,451.21
  5. Step 5: Solve for x
    x = 59,967,203,451.21/215,251.80
  6. Step 6: Final answer
    x = 278,590.95

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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.