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Finding the Fourth Proportional to 361,799.88, 499,203.39 and 208,805.67

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Solution

The fourth proportional to 361,799.88, 499,203.39 and 208,805.67 is: 288,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,799.88 : 499,203.39 = 208,805.67 : x
  2. Step 2: Convert to fraction form
    361,799.88/499,203.39 = 208,805.67/x
  3. Step 3: Cross multiply
    361,799.88x = 499,203.39 × 208,805.67
  4. Step 4: Simplify right side
    361,799.88x = 104,236,498,315.22
  5. Step 5: Solve for x
    x = 104,236,498,315.22/361,799.88
  6. Step 6: Final answer
    x = 288,105.40

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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.