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Finding the Fourth Proportional to 563.34, 845.46 and 255.54

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Solution

The fourth proportional to 563.34, 845.46 and 255.54 is: 383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.34 : 845.46 = 255.54 : x
  2. Step 2: Convert to fraction form
    563.34/845.46 = 255.54/x
  3. Step 3: Cross multiply
    563.34x = 845.46 × 255.54
  4. Step 4: Simplify right side
    563.34x = 216,048.85
  5. Step 5: Solve for x
    x = 216,048.85/563.34
  6. Step 6: Final answer
    x = 383.51

Related Problems

Find fourth proportional to 281.67, 422.73 and 127.77
Half scale
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Double scale
Find fourth proportional to 564.34, 846.96 and 256.54
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.