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Finding the Fourth Proportional to 262,609.28, 393,881.10 and 73,083.86

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Solution

The fourth proportional to 262,609.28, 393,881.10 and 73,083.86 is: 109,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,609.28 : 393,881.10 = 73,083.86 : x
  2. Step 2: Convert to fraction form
    262,609.28/393,881.10 = 73,083.86/x
  3. Step 3: Cross multiply
    262,609.28x = 393,881.10 × 73,083.86
  4. Step 4: Simplify right side
    262,609.28x = 28,786,351,169.05
  5. Step 5: Solve for x
    x = 28,786,351,169.05/262,609.28
  6. Step 6: Final answer
    x = 109,616.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.