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Finding the Fourth Proportional to 441.50, 608.48 and 330.77

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Solution

The fourth proportional to 441.50, 608.48 and 330.77 is: 455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.50 : 608.48 = 330.77 : x
  2. Step 2: Convert to fraction form
    441.50/608.48 = 330.77/x
  3. Step 3: Cross multiply
    441.50x = 608.48 × 330.77
  4. Step 4: Simplify right side
    441.50x = 201,262.23
  5. Step 5: Solve for x
    x = 201,262.23/441.50
  6. Step 6: Final answer
    x = 455.87

Related Problems

Find fourth proportional to 220.75, 304.24 and 165.38
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Double scale
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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.