Home / 379,033.05-523,057.91-217,886.69

Finding the Fourth Proportional to 379,033.05, 523,057.91 and 217,886.69

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Solution

The fourth proportional to 379,033.05, 523,057.91 and 217,886.69 is: 300,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,033.05 : 523,057.91 = 217,886.69 : x
  2. Step 2: Convert to fraction form
    379,033.05/523,057.91 = 217,886.69/x
  3. Step 3: Cross multiply
    379,033.05x = 523,057.91 × 217,886.69
  4. Step 4: Simplify right side
    379,033.05x = 113,967,356,906.43
  5. Step 5: Solve for x
    x = 113,967,356,906.43/379,033.05
  6. Step 6: Final answer
    x = 300,679.20

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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.