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Finding the Fourth Proportional to 323,866.59, 485,149.27 and 161,270.79

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Solution

The fourth proportional to 323,866.59, 485,149.27 and 161,270.79 is: 241,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,866.59 : 485,149.27 = 161,270.79 : x
  2. Step 2: Convert to fraction form
    323,866.59/485,149.27 = 161,270.79/x
  3. Step 3: Cross multiply
    323,866.59x = 485,149.27 × 161,270.79
  4. Step 4: Simplify right side
    323,866.59x = 78,240,406,040.82
  5. Step 5: Solve for x
    x = 78,240,406,040.82/323,866.59
  6. Step 6: Final answer
    x = 241,582.21

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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.