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Finding the Fourth Proportional to 263,267.65, 394,901.48 and 156,979.45

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Solution

The fourth proportional to 263,267.65, 394,901.48 and 156,979.45 is: 235,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,267.65 : 394,901.48 = 156,979.45 : x
  2. Step 2: Convert to fraction form
    263,267.65/394,901.48 = 156,979.45/x
  3. Step 3: Cross multiply
    263,267.65x = 394,901.48 × 156,979.45
  4. Step 4: Simplify right side
    263,267.65x = 61,991,417,134.59
  5. Step 5: Solve for x
    x = 61,991,417,134.59/263,267.65
  6. Step 6: Final answer
    x = 235,469.18

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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.