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Finding the Fourth Proportional to 563.00, 844.49 and 319.69

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Solution

The fourth proportional to 563.00, 844.49 and 319.69 is: 479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.00 : 844.49 = 319.69 : x
  2. Step 2: Convert to fraction form
    563.00/844.49 = 319.69/x
  3. Step 3: Cross multiply
    563.00x = 844.49 × 319.69
  4. Step 4: Simplify right side
    563.00x = 269,976.86
  5. Step 5: Solve for x
    x = 269,976.86/563.00
  6. Step 6: Final answer
    x = 479.54

Related Problems

Find fourth proportional to 281.50, 422.25 and 159.85
Half scale
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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.