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Finding the Fourth Proportional to 448.46, 672.95 and 243.14

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Solution

The fourth proportional to 448.46, 672.95 and 243.14 is: 364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.46 : 672.95 = 243.14 : x
  2. Step 2: Convert to fraction form
    448.46/672.95 = 243.14/x
  3. Step 3: Cross multiply
    448.46x = 672.95 × 243.14
  4. Step 4: Simplify right side
    448.46x = 163,621.53
  5. Step 5: Solve for x
    x = 163,621.53/448.46
  6. Step 6: Final answer
    x = 364.86

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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.