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Finding the Fourth Proportional to 450.80, 675.62 and 347.87

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Solution

The fourth proportional to 450.80, 675.62 and 347.87 is: 521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.80 : 675.62 = 347.87 : x
  2. Step 2: Convert to fraction form
    450.80/675.62 = 347.87/x
  3. Step 3: Cross multiply
    450.80x = 675.62 × 347.87
  4. Step 4: Simplify right side
    450.80x = 235,027.93
  5. Step 5: Solve for x
    x = 235,027.93/450.80
  6. Step 6: Final answer
    x = 521.36

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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.