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Finding the Fourth Proportional to 230,995, 318,773.12 and 125,011

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Solution

The fourth proportional to 230,995, 318,773.12 and 125,011 is: 172,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,995 : 318,773.12 = 125,011 : x
  2. Step 2: Convert to fraction form
    230,995/318,773.12 = 125,011/x
  3. Step 3: Cross multiply
    230,995x = 318,773.12 × 125,011
  4. Step 4: Simplify right side
    230,995x = 39,850,146,504.32
  5. Step 5: Solve for x
    x = 39,850,146,504.32/230,995
  6. Step 6: Final answer
    x = 172,515.19

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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.