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Finding the Fourth Proportional to 399,195.71, 550,870.88 and 227,097.49

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Solution

The fourth proportional to 399,195.71, 550,870.88 and 227,097.49 is: 313,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,195.71 : 550,870.88 = 227,097.49 : x
  2. Step 2: Convert to fraction form
    399,195.71/550,870.88 = 227,097.49/x
  3. Step 3: Cross multiply
    399,195.71x = 550,870.88 × 227,097.49
  4. Step 4: Simplify right side
    399,195.71x = 125,101,392,682.31
  5. Step 5: Solve for x
    x = 125,101,392,682.31/399,195.71
  6. Step 6: Final answer
    x = 313,383.61

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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.