Home / 411,122.14-616,402.58-219,025.29

Finding the Fourth Proportional to 411,122.14, 616,402.58 and 219,025.29

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Solution

The fourth proportional to 411,122.14, 616,402.58 and 219,025.29 is: 328,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,122.14 : 616,402.58 = 219,025.29 : x
  2. Step 2: Convert to fraction form
    411,122.14/616,402.58 = 219,025.29/x
  3. Step 3: Cross multiply
    411,122.14x = 616,402.58 × 219,025.29
  4. Step 4: Simplify right side
    411,122.14x = 135,007,753,841.25
  5. Step 5: Solve for x
    x = 135,007,753,841.25/411,122.14
  6. Step 6: Final answer
    x = 328,388.43

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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.