Home / 289,845.76-399,982.08-162,520.96

Finding the Fourth Proportional to 289,845.76, 399,982.08 and 162,520.96

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Solution

The fourth proportional to 289,845.76, 399,982.08 and 162,520.96 is: 224,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,845.76 : 399,982.08 = 162,520.96 : x
  2. Step 2: Convert to fraction form
    289,845.76/399,982.08 = 162,520.96/x
  3. Step 3: Cross multiply
    289,845.76x = 399,982.08 × 162,520.96
  4. Step 4: Simplify right side
    289,845.76x = 65,005,471,624.40
  5. Step 5: Solve for x
    x = 65,005,471,624.40/289,845.76
  6. Step 6: Final answer
    x = 224,276.08

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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.