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Finding the Fourth Proportional to 662.29, 992.72 and 223.12

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Solution

The fourth proportional to 662.29, 992.72 and 223.12 is: 334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.29 : 992.72 = 223.12 : x
  2. Step 2: Convert to fraction form
    662.29/992.72 = 223.12/x
  3. Step 3: Cross multiply
    662.29x = 992.72 × 223.12
  4. Step 4: Simplify right side
    662.29x = 221,493.76
  5. Step 5: Solve for x
    x = 221,493.76/662.29
  6. Step 6: Final answer
    x = 334.44

Related Problems

Find fourth proportional to 331.14, 496.36 and 111.56
Half scale
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Double scale
Find fourth proportional to 663.29, 994.22 and 224.12
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.