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Finding the Fourth Proportional to 660.82, 910.08 and 549.29

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Solution

The fourth proportional to 660.82, 910.08 and 549.29 is: 756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    660.82 : 910.08 = 549.29 : x
  2. Step 2: Convert to fraction form
    660.82/910.08 = 549.29/x
  3. Step 3: Cross multiply
    660.82x = 910.08 × 549.29
  4. Step 4: Simplify right side
    660.82x = 499,892.37
  5. Step 5: Solve for x
    x = 499,892.37/660.82
  6. Step 6: Final answer
    x = 756.47

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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.