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Finding the Fourth Proportional to 466.75, 644.12 and 270.22

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Solution

The fourth proportional to 466.75, 644.12 and 270.22 is: 372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.75 : 644.12 = 270.22 : x
  2. Step 2: Convert to fraction form
    466.75/644.12 = 270.22/x
  3. Step 3: Cross multiply
    466.75x = 644.12 × 270.22
  4. Step 4: Simplify right side
    466.75x = 174,054.11
  5. Step 5: Solve for x
    x = 174,054.11/466.75
  6. Step 6: Final answer
    x = 372.91

Related Problems

Find fourth proportional to 233.38, 322.06 and 135.11
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.