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Finding the Fourth Proportional to 287,373.79, 396,575.80 and 160,049.35

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Solution

The fourth proportional to 287,373.79, 396,575.80 and 160,049.35 is: 220,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,373.79 : 396,575.80 = 160,049.35 : x
  2. Step 2: Convert to fraction form
    287,373.79/396,575.80 = 160,049.35/x
  3. Step 3: Cross multiply
    287,373.79x = 396,575.80 × 160,049.35
  4. Step 4: Simplify right side
    287,373.79x = 63,471,699,015.73
  5. Step 5: Solve for x
    x = 63,471,699,015.73/287,373.79
  6. Step 6: Final answer
    x = 220,868.09

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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.