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Finding the Fourth Proportional to 571.20, 856.74 and 224.49

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Solution

The fourth proportional to 571.20, 856.74 and 224.49 is: 336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.20 : 856.74 = 224.49 : x
  2. Step 2: Convert to fraction form
    571.20/856.74 = 224.49/x
  3. Step 3: Cross multiply
    571.20x = 856.74 × 224.49
  4. Step 4: Simplify right side
    571.20x = 192,328.80
  5. Step 5: Solve for x
    x = 192,328.80/571.20
  6. Step 6: Final answer
    x = 336.71

Related Problems

Find fourth proportional to 285.60, 428.37 and 112.24
Half scale
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Double scale
Find fourth proportional to 572.20, 858.24 and 225.49
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.