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Finding the Fourth Proportional to 319,833.76, 479,752.28 and 132,845.44

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Solution

The fourth proportional to 319,833.76, 479,752.28 and 132,845.44 is: 199,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,833.76 : 479,752.28 = 132,845.44 : x
  2. Step 2: Convert to fraction form
    319,833.76/479,752.28 = 132,845.44/x
  3. Step 3: Cross multiply
    319,833.76x = 479,752.28 × 132,845.44
  4. Step 4: Simplify right side
    319,833.76x = 63,732,902,727.60
  5. Step 5: Solve for x
    x = 63,732,902,727.60/319,833.76
  6. Step 6: Final answer
    x = 199,268.84

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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.