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Finding the Fourth Proportional to 572.44, 859.22 and 316.12

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Solution

The fourth proportional to 572.44, 859.22 and 316.12 is: 474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.44 : 859.22 = 316.12 : x
  2. Step 2: Convert to fraction form
    572.44/859.22 = 316.12/x
  3. Step 3: Cross multiply
    572.44x = 859.22 × 316.12
  4. Step 4: Simplify right side
    572.44x = 271,616.63
  5. Step 5: Solve for x
    x = 271,616.63/572.44
  6. Step 6: Final answer
    x = 474.49

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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.