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Finding the Fourth Proportional to 331,239.65, 456,957.87 and 195,180.71

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Solution

The fourth proportional to 331,239.65, 456,957.87 and 195,180.71 is: 269,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,239.65 : 456,957.87 = 195,180.71 : x
  2. Step 2: Convert to fraction form
    331,239.65/456,957.87 = 195,180.71/x
  3. Step 3: Cross multiply
    331,239.65x = 456,957.87 × 195,180.71
  4. Step 4: Simplify right side
    331,239.65x = 89,189,361,506.69
  5. Step 5: Solve for x
    x = 89,189,361,506.69/331,239.65
  6. Step 6: Final answer
    x = 269,259.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.