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Finding the Fourth Proportional to 259,526.60, 389,302.70 and 135,110.60

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Solution

The fourth proportional to 259,526.60, 389,302.70 and 135,110.60 is: 202,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,526.60 : 389,302.70 = 135,110.60 : x
  2. Step 2: Convert to fraction form
    259,526.60/389,302.70 = 135,110.60/x
  3. Step 3: Cross multiply
    259,526.60x = 389,302.70 × 135,110.60
  4. Step 4: Simplify right side
    259,526.60x = 52,598,921,378.62
  5. Step 5: Solve for x
    x = 52,598,921,378.62/259,526.60
  6. Step 6: Final answer
    x = 202,672.56

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1.5x scale

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.