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Finding the Fourth Proportional to 287,373, 396,546.34 and 160,060.44

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Solution

The fourth proportional to 287,373, 396,546.34 and 160,060.44 is: 220,867.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,373 : 396,546.34 = 160,060.44 : x
  2. Step 2: Convert to fraction form
    287,373/396,546.34 = 160,060.44/x
  3. Step 3: Cross multiply
    287,373x = 396,546.34 × 160,060.44
  4. Step 4: Simplify right side
    287,373x = 63,471,381,660.79
  5. Step 5: Solve for x
    x = 63,471,381,660.79/287,373
  6. Step 6: Final answer
    x = 220,867.59

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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.