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Finding the Fourth Proportional to 230,418.62, 345,502.86 and 103,910.85

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Solution

The fourth proportional to 230,418.62, 345,502.86 and 103,910.85 is: 155,809.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,418.62 : 345,502.86 = 103,910.85 : x
  2. Step 2: Convert to fraction form
    230,418.62/345,502.86 = 103,910.85/x
  3. Step 3: Cross multiply
    230,418.62x = 345,502.86 × 103,910.85
  4. Step 4: Simplify right side
    230,418.62x = 35,901,495,860.03
  5. Step 5: Solve for x
    x = 35,901,495,860.03/230,418.62
  6. Step 6: Final answer
    x = 155,809.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.