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Finding the Fourth Proportional to 230,967, 318,735.42 and 124,983

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Solution

The fourth proportional to 230,967, 318,735.42 and 124,983 is: 172,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,967 : 318,735.42 = 124,983 : x
  2. Step 2: Convert to fraction form
    230,967/318,735.42 = 124,983/x
  3. Step 3: Cross multiply
    230,967x = 318,735.42 × 124,983
  4. Step 4: Simplify right side
    230,967x = 39,836,508,997.86
  5. Step 5: Solve for x
    x = 39,836,508,997.86/230,967
  6. Step 6: Final answer
    x = 172,477.06

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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.