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Finding the Fourth Proportional to 230,894.82, 318,613.68 and 135,383.58

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Solution

The fourth proportional to 230,894.82, 318,613.68 and 135,383.58 is: 186,816.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,894.82 : 318,613.68 = 135,383.58 : x
  2. Step 2: Convert to fraction form
    230,894.82/318,613.68 = 135,383.58/x
  3. Step 3: Cross multiply
    230,894.82x = 318,613.68 × 135,383.58
  4. Step 4: Simplify right side
    230,894.82x = 43,135,060,635.37
  5. Step 5: Solve for x
    x = 43,135,060,635.37/230,894.82
  6. Step 6: Final answer
    x = 186,816.93

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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.