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Finding the Fourth Proportional to 441.76, 607.60 and 354.24

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Solution

The fourth proportional to 441.76, 607.60 and 354.24 is: 487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.76 : 607.60 = 354.24 : x
  2. Step 2: Convert to fraction form
    441.76/607.60 = 354.24/x
  3. Step 3: Cross multiply
    441.76x = 607.60 × 354.24
  4. Step 4: Simplify right side
    441.76x = 215,236.22
  5. Step 5: Solve for x
    x = 215,236.22/441.76
  6. Step 6: Final answer
    x = 487.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.