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Finding the Fourth Proportional to 361,957.28, 499,552.65 and 208,964.88

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Solution

The fourth proportional to 361,957.28, 499,552.65 and 208,964.88 is: 288,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,957.28 : 499,552.65 = 208,964.88 : x
  2. Step 2: Convert to fraction form
    361,957.28/499,552.65 = 208,964.88/x
  3. Step 3: Cross multiply
    361,957.28x = 499,552.65 × 208,964.88
  4. Step 4: Simplify right side
    361,957.28x = 104,388,959,560.93
  5. Step 5: Solve for x
    x = 104,388,959,560.93/361,957.28
  6. Step 6: Final answer
    x = 288,401.33

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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.