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Finding the Fourth Proportional to 448.59, 672.90 and 362.43

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Solution

The fourth proportional to 448.59, 672.90 and 362.43 is: 543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    448.59 : 672.90 = 362.43 : x
  2. Step 2: Convert to fraction form
    448.59/672.90 = 362.43/x
  3. Step 3: Cross multiply
    448.59x = 672.90 × 362.43
  4. Step 4: Simplify right side
    448.59x = 243,879.15
  5. Step 5: Solve for x
    x = 243,879.15/448.59
  6. Step 6: Final answer
    x = 543.66

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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.