Home / 345,286.35-476,519.06-209,326.03

Finding the Fourth Proportional to 345,286.35, 476,519.06 and 209,326.03

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Solution

The fourth proportional to 345,286.35, 476,519.06 and 209,326.03 is: 288,884.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,286.35 : 476,519.06 = 209,326.03 : x
  2. Step 2: Convert to fraction form
    345,286.35/476,519.06 = 209,326.03/x
  3. Step 3: Cross multiply
    345,286.35x = 476,519.06 × 209,326.03
  4. Step 4: Simplify right side
    345,286.35x = 99,747,842,381.15
  5. Step 5: Solve for x
    x = 99,747,842,381.15/345,286.35
  6. Step 6: Final answer
    x = 288,884.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.