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Finding the Fourth Proportional to 230,590.96, 318,230.16 and 129,995.44

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Solution

The fourth proportional to 230,590.96, 318,230.16 and 129,995.44 is: 179,401.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,590.96 : 318,230.16 = 129,995.44 : x
  2. Step 2: Convert to fraction form
    230,590.96/318,230.16 = 129,995.44/x
  3. Step 3: Cross multiply
    230,590.96x = 318,230.16 × 129,995.44
  4. Step 4: Simplify right side
    230,590.96x = 41,368,469,670.47
  5. Step 5: Solve for x
    x = 41,368,469,670.47/230,590.96
  6. Step 6: Final answer
    x = 179,401.96

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1.5x scale

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.