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Finding the Fourth Proportional to 615.75, 922.02 and 341.48

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Solution

The fourth proportional to 615.75, 922.02 and 341.48 is: 511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.75 : 922.02 = 341.48 : x
  2. Step 2: Convert to fraction form
    615.75/922.02 = 341.48/x
  3. Step 3: Cross multiply
    615.75x = 922.02 × 341.48
  4. Step 4: Simplify right side
    615.75x = 314,846.78
  5. Step 5: Solve for x
    x = 314,846.78/615.75
  6. Step 6: Final answer
    x = 511.32

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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.