Home / 230,630.09-318,261.81-135,134.73

Finding the Fourth Proportional to 230,630.09, 318,261.81 and 135,134.73

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Solution

The fourth proportional to 230,630.09, 318,261.81 and 135,134.73 is: 186,481.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,630.09 : 318,261.81 = 135,134.73 : x
  2. Step 2: Convert to fraction form
    230,630.09/318,261.81 = 135,134.73/x
  3. Step 3: Cross multiply
    230,630.09x = 318,261.81 × 135,134.73
  4. Step 4: Simplify right side
    230,630.09x = 43,008,223,510.28
  5. Step 5: Solve for x
    x = 43,008,223,510.28/230,630.09
  6. Step 6: Final answer
    x = 186,481.41

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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.