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Finding the Fourth Proportional to 447.58, 615.07 and 368.75

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Solution

The fourth proportional to 447.58, 615.07 and 368.75 is: 506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.58 : 615.07 = 368.75 : x
  2. Step 2: Convert to fraction form
    447.58/615.07 = 368.75/x
  3. Step 3: Cross multiply
    447.58x = 615.07 × 368.75
  4. Step 4: Simplify right side
    447.58x = 226,807.06
  5. Step 5: Solve for x
    x = 226,807.06/447.58
  6. Step 6: Final answer
    x = 506.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.