Home / 230,991.20-318,790.32-140,327.36

Finding the Fourth Proportional to 230,991.20, 318,790.32 and 140,327.36

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Solution

The fourth proportional to 230,991.20, 318,790.32 and 140,327.36 is: 193,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,991.20 : 318,790.32 = 140,327.36 : x
  2. Step 2: Convert to fraction form
    230,991.20/318,790.32 = 140,327.36/x
  3. Step 3: Cross multiply
    230,991.20x = 318,790.32 × 140,327.36
  4. Step 4: Simplify right side
    230,991.20x = 44,735,003,999.16
  5. Step 5: Solve for x
    x = 44,735,003,999.16/230,991.20
  6. Step 6: Final answer
    x = 193,665.40

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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.