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Finding the Fourth Proportional to 435.70, 601.19 and 330.76

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Solution

The fourth proportional to 435.70, 601.19 and 330.76 is: 456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.70 : 601.19 = 330.76 : x
  2. Step 2: Convert to fraction form
    435.70/601.19 = 330.76/x
  3. Step 3: Cross multiply
    435.70x = 601.19 × 330.76
  4. Step 4: Simplify right side
    435.70x = 198,849.94
  5. Step 5: Solve for x
    x = 198,849.94/435.70
  6. Step 6: Final answer
    x = 456.39

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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.