Home / 230,664.80-318,310.20-135,235.05

Finding the Fourth Proportional to 230,664.80, 318,310.20 and 135,235.05

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Solution

The fourth proportional to 230,664.80, 318,310.20 and 135,235.05 is: 186,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,664.80 : 318,310.20 = 135,235.05 : x
  2. Step 2: Convert to fraction form
    230,664.80/318,310.20 = 135,235.05/x
  3. Step 3: Cross multiply
    230,664.80x = 318,310.20 × 135,235.05
  4. Step 4: Simplify right side
    230,664.80x = 43,046,695,812.51
  5. Step 5: Solve for x
    x = 43,046,695,812.51/230,664.80
  6. Step 6: Final answer
    x = 186,620.13

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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.