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Finding the Fourth Proportional to 563.34, 845.00 and 255.12

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Solution

The fourth proportional to 563.34, 845.00 and 255.12 is: 382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.34 : 845.00 = 255.12 : x
  2. Step 2: Convert to fraction form
    563.34/845.00 = 255.12/x
  3. Step 3: Cross multiply
    563.34x = 845.00 × 255.12
  4. Step 4: Simplify right side
    563.34x = 215,575.12
  5. Step 5: Solve for x
    x = 215,575.12/563.34
  6. Step 6: Final answer
    x = 382.67

Related Problems

Find fourth proportional to 281.67, 422.50 and 127.56
Half scale
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Double scale
Find fourth proportional to 564.34, 846.49 and 256.12
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.