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Finding the Fourth Proportional to 483.86, 725.76 and 159.23

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Solution

The fourth proportional to 483.86, 725.76 and 159.23 is: 238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.86 : 725.76 = 159.23 : x
  2. Step 2: Convert to fraction form
    483.86/725.76 = 159.23/x
  3. Step 3: Cross multiply
    483.86x = 725.76 × 159.23
  4. Step 4: Simplify right side
    483.86x = 115,559.14
  5. Step 5: Solve for x
    x = 115,559.14/483.86
  6. Step 6: Final answer
    x = 238.83

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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.