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Finding the Fourth Proportional to 563.60, 845.76 and 274.88

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Solution

The fourth proportional to 563.60, 845.76 and 274.88 is: 412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.60 : 845.76 = 274.88 : x
  2. Step 2: Convert to fraction form
    563.60/845.76 = 274.88/x
  3. Step 3: Cross multiply
    563.60x = 845.76 × 274.88
  4. Step 4: Simplify right side
    563.60x = 232,484.62
  5. Step 5: Solve for x
    x = 232,484.62/563.60
  6. Step 6: Final answer
    x = 412.50

Related Problems

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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.