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Finding the Fourth Proportional to 323,866.81, 485,149.62 and 161,271.01

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Solution

The fourth proportional to 323,866.81, 485,149.62 and 161,271.01 is: 241,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,866.81 : 485,149.62 = 161,271.01 : x
  2. Step 2: Convert to fraction form
    323,866.81/485,149.62 = 161,271.01/x
  3. Step 3: Cross multiply
    323,866.81x = 485,149.62 × 161,271.01
  4. Step 4: Simplify right side
    323,866.81x = 78,240,568,412.16
  5. Step 5: Solve for x
    x = 78,240,568,412.16/323,866.81
  6. Step 6: Final answer
    x = 241,582.55

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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.