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Finding the Fourth Proportional to 304.44, 456.45 and 142.04

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Solution

The fourth proportional to 304.44, 456.45 and 142.04 is: 212.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.44 : 456.45 = 142.04 : x
  2. Step 2: Convert to fraction form
    304.44/456.45 = 142.04/x
  3. Step 3: Cross multiply
    304.44x = 456.45 × 142.04
  4. Step 4: Simplify right side
    304.44x = 64,831.88
  5. Step 5: Solve for x
    x = 64,831.88/304.44
  6. Step 6: Final answer
    x = 212.95

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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.