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Finding the Fourth Proportional to 340,689.15, 511,147.46 and 151,123.37

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Solution

The fourth proportional to 340,689.15, 511,147.46 and 151,123.37 is: 226,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,689.15 : 511,147.46 = 151,123.37 : x
  2. Step 2: Convert to fraction form
    340,689.15/511,147.46 = 151,123.37/x
  3. Step 3: Cross multiply
    340,689.15x = 511,147.46 × 151,123.37
  4. Step 4: Simplify right side
    340,689.15x = 77,246,324,544.21
  5. Step 5: Solve for x
    x = 77,246,324,544.21/340,689.15
  6. Step 6: Final answer
    x = 226,735.50

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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.