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Finding the Fourth Proportional to 230,456, 318,029.32 and 124,472

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Solution

The fourth proportional to 230,456, 318,029.32 and 124,472 is: 171,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,456 : 318,029.32 = 124,472 : x
  2. Step 2: Convert to fraction form
    230,456/318,029.32 = 124,472/x
  3. Step 3: Cross multiply
    230,456x = 318,029.32 × 124,472
  4. Step 4: Simplify right side
    230,456x = 39,585,745,519.04
  5. Step 5: Solve for x
    x = 39,585,745,519.04/230,456
  6. Step 6: Final answer
    x = 171,771.38

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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.