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Finding the Fourth Proportional to 540.49, 810.39 and 366.22

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Solution

The fourth proportional to 540.49, 810.39 and 366.22 is: 549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.49 : 810.39 = 366.22 : x
  2. Step 2: Convert to fraction form
    540.49/810.39 = 366.22/x
  3. Step 3: Cross multiply
    540.49x = 810.39 × 366.22
  4. Step 4: Simplify right side
    540.49x = 296,781.03
  5. Step 5: Solve for x
    x = 296,781.03/540.49
  6. Step 6: Final answer
    x = 549.10

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Double scale
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1.5x scale

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.