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Finding the Fourth Proportional to 376,479.92, 519,549.72 and 206,712.56

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Solution

The fourth proportional to 376,479.92, 519,549.72 and 206,712.56 is: 285,267.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,479.92 : 519,549.72 = 206,712.56 : x
  2. Step 2: Convert to fraction form
    376,479.92/519,549.72 = 206,712.56/x
  3. Step 3: Cross multiply
    376,479.92x = 519,549.72 × 206,712.56
  4. Step 4: Simplify right side
    376,479.92x = 107,397,452,668.48
  5. Step 5: Solve for x
    x = 107,397,452,668.48/376,479.92
  6. Step 6: Final answer
    x = 285,267.41

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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.