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Finding the Fourth Proportional to 339.49, 509.31 and 96.04

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Solution

The fourth proportional to 339.49, 509.31 and 96.04 is: 144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.49 : 509.31 = 96.04 : x
  2. Step 2: Convert to fraction form
    339.49/509.31 = 96.04/x
  3. Step 3: Cross multiply
    339.49x = 509.31 × 96.04
  4. Step 4: Simplify right side
    339.49x = 48,914.13
  5. Step 5: Solve for x
    x = 48,914.13/339.49
  6. Step 6: Final answer
    x = 144.08

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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.