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Finding the Fourth Proportional to 340,932.80, 511,437.60 and 104,273.60

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Solution

The fourth proportional to 340,932.80, 511,437.60 and 104,273.60 is: 156,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,932.80 : 511,437.60 = 104,273.60 : x
  2. Step 2: Convert to fraction form
    340,932.80/511,437.60 = 104,273.60/x
  3. Step 3: Cross multiply
    340,932.80x = 511,437.60 × 104,273.60
  4. Step 4: Simplify right side
    340,932.80x = 53,329,439,727.36
  5. Step 5: Solve for x
    x = 53,329,439,727.36/340,932.80
  6. Step 6: Final answer
    x = 156,422.14

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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.