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Finding the Fourth Proportional to 402.60, 601.59 and 330.24

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Solution

The fourth proportional to 402.60, 601.59 and 330.24 is: 493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.60 : 601.59 = 330.24 : x
  2. Step 2: Convert to fraction form
    402.60/601.59 = 330.24/x
  3. Step 3: Cross multiply
    402.60x = 601.59 × 330.24
  4. Step 4: Simplify right side
    402.60x = 198,669.08
  5. Step 5: Solve for x
    x = 198,669.08/402.60
  6. Step 6: Final answer
    x = 493.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.