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Finding the Fourth Proportional to 171,442.80, 256,726.80 and 136,450.80

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Solution

The fourth proportional to 171,442.80, 256,726.80 and 136,450.80 is: 204,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,442.80 : 256,726.80 = 136,450.80 : x
  2. Step 2: Convert to fraction form
    171,442.80/256,726.80 = 136,450.80/x
  3. Step 3: Cross multiply
    171,442.80x = 256,726.80 × 136,450.80
  4. Step 4: Simplify right side
    171,442.80x = 35,030,577,241.44
  5. Step 5: Solve for x
    x = 35,030,577,241.44/171,442.80
  6. Step 6: Final answer
    x = 204,328.07

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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.