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Finding the Fourth Proportional to 456.04, 629.16 and 269.47

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Solution

The fourth proportional to 456.04, 629.16 and 269.47 is: 371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.04 : 629.16 = 269.47 : x
  2. Step 2: Convert to fraction form
    456.04/629.16 = 269.47/x
  3. Step 3: Cross multiply
    456.04x = 629.16 × 269.47
  4. Step 4: Simplify right side
    456.04x = 169,539.75
  5. Step 5: Solve for x
    x = 169,539.75/456.04
  6. Step 6: Final answer
    x = 371.77

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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.