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Finding the Fourth Proportional to 268,524.57, 402,786.89 and 127,856.73

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Solution

The fourth proportional to 268,524.57, 402,786.89 and 127,856.73 is: 191,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,524.57 : 402,786.89 = 127,856.73 : x
  2. Step 2: Convert to fraction form
    268,524.57/402,786.89 = 127,856.73/x
  3. Step 3: Cross multiply
    268,524.57x = 402,786.89 × 127,856.73
  4. Step 4: Simplify right side
    268,524.57x = 51,499,014,642.27
  5. Step 5: Solve for x
    x = 51,499,014,642.27/268,524.57
  6. Step 6: Final answer
    x = 191,785.11

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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.