Home / 379,110.27-523,165.17-209,340.75

Finding the Fourth Proportional to 379,110.27, 523,165.17 and 209,340.75

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Solution

The fourth proportional to 379,110.27, 523,165.17 and 209,340.75 is: 288,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,110.27 : 523,165.17 = 209,340.75 : x
  2. Step 2: Convert to fraction form
    379,110.27/523,165.17 = 209,340.75/x
  3. Step 3: Cross multiply
    379,110.27x = 523,165.17 × 209,340.75
  4. Step 4: Simplify right side
    379,110.27x = 109,519,789,061.68
  5. Step 5: Solve for x
    x = 109,519,789,061.68/379,110.27
  6. Step 6: Final answer
    x = 288,886.37

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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.