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Finding the Fourth Proportional to 350.67, 528.45 and 330.15

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Solution

The fourth proportional to 350.67, 528.45 and 330.15 is: 497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.67 : 528.45 = 330.15 : x
  2. Step 2: Convert to fraction form
    350.67/528.45 = 330.15/x
  3. Step 3: Cross multiply
    350.67x = 528.45 × 330.15
  4. Step 4: Simplify right side
    350.67x = 174,467.77
  5. Step 5: Solve for x
    x = 174,467.77/350.67
  6. Step 6: Final answer
    x = 497.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.