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Finding the Fourth Proportional to 230,949, 318,710.58 and 124,965

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Solution

The fourth proportional to 230,949, 318,710.58 and 124,965 is: 172,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,949 : 318,710.58 = 124,965 : x
  2. Step 2: Convert to fraction form
    230,949/318,710.58 = 124,965/x
  3. Step 3: Cross multiply
    230,949x = 318,710.58 × 124,965
  4. Step 4: Simplify right side
    230,949x = 39,827,667,629.70
  5. Step 5: Solve for x
    x = 39,827,667,629.70/230,949
  6. Step 6: Final answer
    x = 172,452.22

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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.