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Finding the Fourth Proportional to 331,804.44, 497,411.94 and 129,353.88

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Solution

The fourth proportional to 331,804.44, 497,411.94 and 129,353.88 is: 193,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,804.44 : 497,411.94 = 129,353.88 : x
  2. Step 2: Convert to fraction form
    331,804.44/497,411.94 = 129,353.88/x
  3. Step 3: Cross multiply
    331,804.44x = 497,411.94 × 129,353.88
  4. Step 4: Simplify right side
    331,804.44x = 64,342,164,397.33
  5. Step 5: Solve for x
    x = 64,342,164,397.33/331,804.44
  6. Step 6: Final answer
    x = 193,915.92

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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.