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Finding the Fourth Proportional to 169,241.22, 253,796.22 and 90,312.39

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Solution

The fourth proportional to 169,241.22, 253,796.22 and 90,312.39 is: 135,433.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,241.22 : 253,796.22 = 90,312.39 : x
  2. Step 2: Convert to fraction form
    169,241.22/253,796.22 = 90,312.39/x
  3. Step 3: Cross multiply
    169,241.22x = 253,796.22 × 90,312.39
  4. Step 4: Simplify right side
    169,241.22x = 22,920,943,201.17
  5. Step 5: Solve for x
    x = 22,920,943,201.17/169,241.22
  6. Step 6: Final answer
    x = 135,433.57

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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.