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Finding the Fourth Proportional to 441.89, 607.77 and 354.37

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Solution

The fourth proportional to 441.89, 607.77 and 354.37 is: 487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.89 : 607.77 = 354.37 : x
  2. Step 2: Convert to fraction form
    441.89/607.77 = 354.37/x
  3. Step 3: Cross multiply
    441.89x = 607.77 × 354.37
  4. Step 4: Simplify right side
    441.89x = 215,373.30
  5. Step 5: Solve for x
    x = 215,373.30/441.89
  6. Step 6: Final answer
    x = 487.40

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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.