Home / 259,541.60-389,325.20-135,125.60

Finding the Fourth Proportional to 259,541.60, 389,325.20 and 135,125.60

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Solution

The fourth proportional to 259,541.60, 389,325.20 and 135,125.60 is: 202,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,541.60 : 389,325.20 = 135,125.60 : x
  2. Step 2: Convert to fraction form
    259,541.60/389,325.20 = 135,125.60/x
  3. Step 3: Cross multiply
    259,541.60x = 389,325.20 × 135,125.60
  4. Step 4: Simplify right side
    259,541.60x = 52,607,801,245.12
  5. Step 5: Solve for x
    x = 52,607,801,245.12/259,541.60
  6. Step 6: Final answer
    x = 202,695.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.