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Finding the Fourth Proportional to 169,781.80, 254,672.70 and 155,266.60

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Solution

The fourth proportional to 169,781.80, 254,672.70 and 155,266.60 is: 232,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,781.80 : 254,672.70 = 155,266.60 : x
  2. Step 2: Convert to fraction form
    169,781.80/254,672.70 = 155,266.60/x
  3. Step 3: Cross multiply
    169,781.80x = 254,672.70 × 155,266.60
  4. Step 4: Simplify right side
    169,781.80x = 39,542,164,241.82
  5. Step 5: Solve for x
    x = 39,542,164,241.82/169,781.80
  6. Step 6: Final answer
    x = 232,899.90

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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.