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Finding the Fourth Proportional to 535.35, 803.03 and 274.99

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Solution

The fourth proportional to 535.35, 803.03 and 274.99 is: 412.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.35 : 803.03 = 274.99 : x
  2. Step 2: Convert to fraction form
    535.35/803.03 = 274.99/x
  3. Step 3: Cross multiply
    535.35x = 803.03 × 274.99
  4. Step 4: Simplify right side
    535.35x = 220,821.84
  5. Step 5: Solve for x
    x = 220,821.84/535.35
  6. Step 6: Final answer
    x = 412.48

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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.