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Finding the Fourth Proportional to 540.50, 810.95 and 324.23

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Solution

The fourth proportional to 540.50, 810.95 and 324.23 is: 486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.50 : 810.95 = 324.23 : x
  2. Step 2: Convert to fraction form
    540.50/810.95 = 324.23/x
  3. Step 3: Cross multiply
    540.50x = 810.95 × 324.23
  4. Step 4: Simplify right side
    540.50x = 262,928.64
  5. Step 5: Solve for x
    x = 262,928.64/540.50
  6. Step 6: Final answer
    x = 486.46

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.