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Finding the Fourth Proportional to 528.44, 792.57 and 254.36

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Solution

The fourth proportional to 528.44, 792.57 and 254.36 is: 381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.44 : 792.57 = 254.36 : x
  2. Step 2: Convert to fraction form
    528.44/792.57 = 254.36/x
  3. Step 3: Cross multiply
    528.44x = 792.57 × 254.36
  4. Step 4: Simplify right side
    528.44x = 201,598.11
  5. Step 5: Solve for x
    x = 201,598.11/528.44
  6. Step 6: Final answer
    x = 381.50

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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.