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Finding the Fourth Proportional to 289,593.84, 399,661.92 and 162,281.28

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Solution

The fourth proportional to 289,593.84, 399,661.92 and 162,281.28 is: 223,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,593.84 : 399,661.92 = 162,281.28 : x
  2. Step 2: Convert to fraction form
    289,593.84/399,661.92 = 162,281.28/x
  3. Step 3: Cross multiply
    289,593.84x = 399,661.92 × 162,281.28
  4. Step 4: Simplify right side
    289,593.84x = 64,857,647,944.86
  5. Step 5: Solve for x
    x = 64,857,647,944.86/289,593.84
  6. Step 6: Final answer
    x = 223,960.73

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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.