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Finding the Fourth Proportional to 615.10, 922.66 and 441.36

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Solution

The fourth proportional to 615.10, 922.66 and 441.36 is: 662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.10 : 922.66 = 441.36 : x
  2. Step 2: Convert to fraction form
    615.10/922.66 = 441.36/x
  3. Step 3: Cross multiply
    615.10x = 922.66 × 441.36
  4. Step 4: Simplify right side
    615.10x = 407,225.22
  5. Step 5: Solve for x
    x = 407,225.22/615.10
  6. Step 6: Final answer
    x = 662.05

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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.