Home / 411,550.17-616,873.68-211,881.21

Finding the Fourth Proportional to 411,550.17, 616,873.68 and 211,881.21

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Solution

The fourth proportional to 411,550.17, 616,873.68 and 211,881.21 is: 317,589.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,550.17 : 616,873.68 = 211,881.21 : x
  2. Step 2: Convert to fraction form
    411,550.17/616,873.68 = 211,881.21/x
  3. Step 3: Cross multiply
    411,550.17x = 616,873.68 × 211,881.21
  4. Step 4: Simplify right side
    411,550.17x = 130,703,941,735.55
  5. Step 5: Solve for x
    x = 130,703,941,735.55/411,550.17
  6. Step 6: Final answer
    x = 317,589.33

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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.