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Finding the Fourth Proportional to 446.40, 615.12 and 372.32

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Solution

The fourth proportional to 446.40, 615.12 and 372.32 is: 513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.40 : 615.12 = 372.32 : x
  2. Step 2: Convert to fraction form
    446.40/615.12 = 372.32/x
  3. Step 3: Cross multiply
    446.40x = 615.12 × 372.32
  4. Step 4: Simplify right side
    446.40x = 229,021.48
  5. Step 5: Solve for x
    x = 229,021.48/446.40
  6. Step 6: Final answer
    x = 513.04

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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.