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Finding the Fourth Proportional to 343,577.10, 515,754.45 and 203,414.70

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Solution

The fourth proportional to 343,577.10, 515,754.45 and 203,414.70 is: 305,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,577.10 : 515,754.45 = 203,414.70 : x
  2. Step 2: Convert to fraction form
    343,577.10/515,754.45 = 203,414.70/x
  3. Step 3: Cross multiply
    343,577.10x = 515,754.45 × 203,414.70
  4. Step 4: Simplify right side
    343,577.10x = 104,912,036,720.42
  5. Step 5: Solve for x
    x = 104,912,036,720.42/343,577.10
  6. Step 6: Final answer
    x = 305,352.24

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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.