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Finding the Fourth Proportional to 230,480.73, 345,691.94 and 90,337.77

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Solution

The fourth proportional to 230,480.73, 345,691.94 and 90,337.77 is: 135,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,480.73 : 345,691.94 = 90,337.77 : x
  2. Step 2: Convert to fraction form
    230,480.73/345,691.94 = 90,337.77/x
  3. Step 3: Cross multiply
    230,480.73x = 345,691.94 × 90,337.77
  4. Step 4: Simplify right side
    230,480.73x = 31,229,038,514.89
  5. Step 5: Solve for x
    x = 31,229,038,514.89/230,480.73
  6. Step 6: Final answer
    x = 135,495.23

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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.