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Finding the Fourth Proportional to 230,910.96, 318,710.25 and 135,448.41

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Solution

The fourth proportional to 230,910.96, 318,710.25 and 135,448.41 is: 186,949.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,910.96 : 318,710.25 = 135,448.41 : x
  2. Step 2: Convert to fraction form
    230,910.96/318,710.25 = 135,448.41/x
  3. Step 3: Cross multiply
    230,910.96x = 318,710.25 × 135,448.41
  4. Step 4: Simplify right side
    230,910.96x = 43,168,796,613.20
  5. Step 5: Solve for x
    x = 43,168,796,613.20/230,910.96
  6. Step 6: Final answer
    x = 186,949.97

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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.