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Finding the Fourth Proportional to 441.96, 609.96 and 284.76

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Solution

The fourth proportional to 441.96, 609.96 and 284.76 is: 393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.96 : 609.96 = 284.76 : x
  2. Step 2: Convert to fraction form
    441.96/609.96 = 284.76/x
  3. Step 3: Cross multiply
    441.96x = 609.96 × 284.76
  4. Step 4: Simplify right side
    441.96x = 173,692.21
  5. Step 5: Solve for x
    x = 173,692.21/441.96
  6. Step 6: Final answer
    x = 393.00

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Find fourth proportional to 220.98, 304.98 and 142.38
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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.