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Finding the Fourth Proportional to 275,530.53, 380,231.95 and 154,672.05

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Solution

The fourth proportional to 275,530.53, 380,231.95 and 154,672.05 is: 213,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,530.53 : 380,231.95 = 154,672.05 : x
  2. Step 2: Convert to fraction form
    275,530.53/380,231.95 = 154,672.05/x
  3. Step 3: Cross multiply
    275,530.53x = 380,231.95 × 154,672.05
  4. Step 4: Simplify right side
    275,530.53x = 58,811,255,182.00
  5. Step 5: Solve for x
    x = 58,811,255,182.00/275,530.53
  6. Step 6: Final answer
    x = 213,447.33

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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.