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Finding the Fourth Proportional to 331,652.88, 497,557.08 and 131,984.64

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Solution

The fourth proportional to 331,652.88, 497,557.08 and 131,984.64 is: 198,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,652.88 : 497,557.08 = 131,984.64 : x
  2. Step 2: Convert to fraction form
    331,652.88/497,557.08 = 131,984.64/x
  3. Step 3: Cross multiply
    331,652.88x = 497,557.08 × 131,984.64
  4. Step 4: Simplify right side
    331,652.88x = 65,669,892,083.25
  5. Step 5: Solve for x
    x = 65,669,892,083.25/331,652.88
  6. Step 6: Final answer
    x = 198,007.91

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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.