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Finding the Fourth Proportional to 446.71, 669.24 and 284.05

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Solution

The fourth proportional to 446.71, 669.24 and 284.05 is: 425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.71 : 669.24 = 284.05 : x
  2. Step 2: Convert to fraction form
    446.71/669.24 = 284.05/x
  3. Step 3: Cross multiply
    446.71x = 669.24 × 284.05
  4. Step 4: Simplify right side
    446.71x = 190,097.62
  5. Step 5: Solve for x
    x = 190,097.62/446.71
  6. Step 6: Final answer
    x = 425.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.