Home / 230,661.05-318,305.03-135,231.30

Finding the Fourth Proportional to 230,661.05, 318,305.03 and 135,231.30

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Solution

The fourth proportional to 230,661.05, 318,305.03 and 135,231.30 is: 186,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,661.05 : 318,305.03 = 135,231.30 : x
  2. Step 2: Convert to fraction form
    230,661.05/318,305.03 = 135,231.30/x
  3. Step 3: Cross multiply
    230,661.05x = 318,305.03 × 135,231.30
  4. Step 4: Simplify right side
    230,661.05x = 43,044,802,327.28
  5. Step 5: Solve for x
    x = 43,044,802,327.28/230,661.05
  6. Step 6: Final answer
    x = 186,614.96

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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.