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Finding the Fourth Proportional to 275,016.59, 412,525.21 and 75,338.70

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Solution

The fourth proportional to 275,016.59, 412,525.21 and 75,338.70 is: 113,008.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,016.59 : 412,525.21 = 75,338.70 : x
  2. Step 2: Convert to fraction form
    275,016.59/412,525.21 = 75,338.70/x
  3. Step 3: Cross multiply
    275,016.59x = 412,525.21 × 75,338.70
  4. Step 4: Simplify right side
    275,016.59x = 31,079,113,038.63
  5. Step 5: Solve for x
    x = 31,079,113,038.63/275,016.59
  6. Step 6: Final answer
    x = 113,008.14

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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.