Home / 239,828.38-359,616.10-212,511.30

Finding the Fourth Proportional to 239,828.38, 359,616.10 and 212,511.30

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Solution

The fourth proportional to 239,828.38, 359,616.10 and 212,511.30 is: 318,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,828.38 : 359,616.10 = 212,511.30 : x
  2. Step 2: Convert to fraction form
    239,828.38/359,616.10 = 212,511.30/x
  3. Step 3: Cross multiply
    239,828.38x = 359,616.10 × 212,511.30
  4. Step 4: Simplify right side
    239,828.38x = 76,422,485,556.83
  5. Step 5: Solve for x
    x = 76,422,485,556.83/239,828.38
  6. Step 6: Final answer
    x = 318,654.88

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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.