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Finding the Fourth Proportional to 339.30, 504.95 and 335.70

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Solution

The fourth proportional to 339.30, 504.95 and 335.70 is: 499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.30 : 504.95 = 335.70 : x
  2. Step 2: Convert to fraction form
    339.30/504.95 = 335.70/x
  3. Step 3: Cross multiply
    339.30x = 504.95 × 335.70
  4. Step 4: Simplify right side
    339.30x = 169,510.04
  5. Step 5: Solve for x
    x = 169,510.04/339.30
  6. Step 6: Final answer
    x = 499.59

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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.