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Finding the Fourth Proportional to 644.00, 965.68 and 233.07

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Solution

The fourth proportional to 644.00, 965.68 and 233.07 is: 349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    644.00 : 965.68 = 233.07 : x
  2. Step 2: Convert to fraction form
    644.00/965.68 = 233.07/x
  3. Step 3: Cross multiply
    644.00x = 965.68 × 233.07
  4. Step 4: Simplify right side
    644.00x = 225,070.45
  5. Step 5: Solve for x
    x = 225,070.45/644.00
  6. Step 6: Final answer
    x = 349.49

Related Problems

Find fourth proportional to 322.00, 482.84 and 116.54
Half scale
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Double scale
Find fourth proportional to 645, 967.18 and 234.07
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.