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Finding the Fourth Proportional to 295,687.81, 408,049.35 and 159,721.76

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Solution

The fourth proportional to 295,687.81, 408,049.35 and 159,721.76 is: 220,416.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,687.81 : 408,049.35 = 159,721.76 : x
  2. Step 2: Convert to fraction form
    295,687.81/408,049.35 = 159,721.76/x
  3. Step 3: Cross multiply
    295,687.81x = 408,049.35 × 159,721.76
  4. Step 4: Simplify right side
    295,687.81x = 65,174,360,770.02
  5. Step 5: Solve for x
    x = 65,174,360,770.02/295,687.81
  6. Step 6: Final answer
    x = 220,416.12

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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.