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Finding the Fourth Proportional to 288,123.44, 397,632.33 and 159,086.79

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Solution

The fourth proportional to 288,123.44, 397,632.33 and 159,086.79 is: 219,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,123.44 : 397,632.33 = 159,086.79 : x
  2. Step 2: Convert to fraction form
    288,123.44/397,632.33 = 159,086.79/x
  3. Step 3: Cross multiply
    288,123.44x = 397,632.33 × 159,086.79
  4. Step 4: Simplify right side
    288,123.44x = 63,258,050,979.92
  5. Step 5: Solve for x
    x = 63,258,050,979.92/288,123.44
  6. Step 6: Final answer
    x = 219,551.91

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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.