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Finding the Fourth Proportional to 169,900.40, 254,849.70 and 43,540.40

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Solution

The fourth proportional to 169,900.40, 254,849.70 and 43,540.40 is: 65,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,900.40 : 254,849.70 = 43,540.40 : x
  2. Step 2: Convert to fraction form
    169,900.40/254,849.70 = 43,540.40/x
  3. Step 3: Cross multiply
    169,900.40x = 254,849.70 × 43,540.40
  4. Step 4: Simplify right side
    169,900.40x = 11,096,257,877.88
  5. Step 5: Solve for x
    x = 11,096,257,877.88/169,900.40
  6. Step 6: Final answer
    x = 65,310.37

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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.