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Finding the Fourth Proportional to 552.69, 762.81 and 366.18

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Solution

The fourth proportional to 552.69, 762.81 and 366.18 is: 505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.69 : 762.81 = 366.18 : x
  2. Step 2: Convert to fraction form
    552.69/762.81 = 366.18/x
  3. Step 3: Cross multiply
    552.69x = 762.81 × 366.18
  4. Step 4: Simplify right side
    552.69x = 279,325.77
  5. Step 5: Solve for x
    x = 279,325.77/552.69
  6. Step 6: Final answer
    x = 505.39

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Double scale
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1.5x scale

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.