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Finding the Fourth Proportional to 304.02, 419.56 and 173.03

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Solution

The fourth proportional to 304.02, 419.56 and 173.03 is: 238.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.02 : 419.56 = 173.03 : x
  2. Step 2: Convert to fraction form
    304.02/419.56 = 173.03/x
  3. Step 3: Cross multiply
    304.02x = 419.56 × 173.03
  4. Step 4: Simplify right side
    304.02x = 72,595.51
  5. Step 5: Solve for x
    x = 72,595.51/304.02
  6. Step 6: Final answer
    x = 238.78

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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.