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Finding the Fourth Proportional to 230,612.72, 318,245.16 and 130,010.72

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Solution

The fourth proportional to 230,612.72, 318,245.16 and 130,010.72 is: 179,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,612.72 : 318,245.16 = 130,010.72 : x
  2. Step 2: Convert to fraction form
    230,612.72/318,245.16 = 130,010.72/x
  3. Step 3: Cross multiply
    230,612.72x = 318,245.16 × 130,010.72
  4. Step 4: Simplify right side
    230,612.72x = 41,375,282,388.12
  5. Step 5: Solve for x
    x = 41,375,282,388.12/230,612.72
  6. Step 6: Final answer
    x = 179,414.57

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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.