Home / 345,519.45-476,676.39-229,287.74

Finding the Fourth Proportional to 345,519.45, 476,676.39 and 229,287.74

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Solution

The fourth proportional to 345,519.45, 476,676.39 and 229,287.74 is: 316,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,519.45 : 476,676.39 = 229,287.74 : x
  2. Step 2: Convert to fraction form
    345,519.45/476,676.39 = 229,287.74/x
  3. Step 3: Cross multiply
    345,519.45x = 476,676.39 × 229,287.74
  4. Step 4: Simplify right side
    345,519.45x = 109,296,049,791.08
  5. Step 5: Solve for x
    x = 109,296,049,791.08/345,519.45
  6. Step 6: Final answer
    x = 316,323.87

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1.5x scale

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.