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Finding the Fourth Proportional to 275,531.04, 380,232.65 and 154,672.56

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Solution

The fourth proportional to 275,531.04, 380,232.65 and 154,672.56 is: 213,448.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,531.04 : 380,232.65 = 154,672.56 : x
  2. Step 2: Convert to fraction form
    275,531.04/380,232.65 = 154,672.56/x
  3. Step 3: Cross multiply
    275,531.04x = 380,232.65 × 154,672.56
  4. Step 4: Simplify right side
    275,531.04x = 58,811,556,597.72
  5. Step 5: Solve for x
    x = 58,811,556,597.72/275,531.04
  6. Step 6: Final answer
    x = 213,448.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.