Home / 436,188.80-654,387.77-211,286.39

Finding the Fourth Proportional to 436,188.80, 654,387.77 and 211,286.39

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Solution

The fourth proportional to 436,188.80, 654,387.77 and 211,286.39 is: 316,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,188.80 : 654,387.77 = 211,286.39 : x
  2. Step 2: Convert to fraction form
    436,188.80/654,387.77 = 211,286.39/x
  3. Step 3: Cross multiply
    436,188.80x = 654,387.77 × 211,286.39
  4. Step 4: Simplify right side
    436,188.80x = 138,263,226,839.73
  5. Step 5: Solve for x
    x = 138,263,226,839.73/436,188.80
  6. Step 6: Final answer
    x = 316,980.23

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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.