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Finding the Fourth Proportional to 615.76, 849.62 and 366.99

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Solution

The fourth proportional to 615.76, 849.62 and 366.99 is: 506.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.76 : 849.62 = 366.99 : x
  2. Step 2: Convert to fraction form
    615.76/849.62 = 366.99/x
  3. Step 3: Cross multiply
    615.76x = 849.62 × 366.99
  4. Step 4: Simplify right side
    615.76x = 311,802.04
  5. Step 5: Solve for x
    x = 311,802.04/615.76
  6. Step 6: Final answer
    x = 506.37

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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.