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Finding the Fourth Proportional to 419.04, 628.56 and 175.23

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Solution

The fourth proportional to 419.04, 628.56 and 175.23 is: 262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419.04 : 628.56 = 175.23 : x
  2. Step 2: Convert to fraction form
    419.04/628.56 = 175.23/x
  3. Step 3: Cross multiply
    419.04x = 628.56 × 175.23
  4. Step 4: Simplify right side
    419.04x = 110,142.57
  5. Step 5: Solve for x
    x = 110,142.57/419.04
  6. Step 6: Final answer
    x = 262.85

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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.