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Finding the Fourth Proportional to 230,910.67, 318,876.80 and 218,330.64

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Solution

The fourth proportional to 230,910.67, 318,876.80 and 218,330.64 is: 301,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,910.67 : 318,876.80 = 218,330.64 : x
  2. Step 2: Convert to fraction form
    230,910.67/318,876.80 = 218,330.64/x
  3. Step 3: Cross multiply
    230,910.67x = 318,876.80 × 218,330.64
  4. Step 4: Simplify right side
    230,910.67x = 69,620,575,961.61
  5. Step 5: Solve for x
    x = 69,620,575,961.61/230,910.67
  6. Step 6: Final answer
    x = 301,504.36

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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.