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Finding the Fourth Proportional to 655.41, 983.12 and 330.33

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Solution

The fourth proportional to 655.41, 983.12 and 330.33 is: 495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.41 : 983.12 = 330.33 : x
  2. Step 2: Convert to fraction form
    655.41/983.12 = 330.33/x
  3. Step 3: Cross multiply
    655.41x = 983.12 × 330.33
  4. Step 4: Simplify right side
    655.41x = 324,752.38
  5. Step 5: Solve for x
    x = 324,752.38/655.41
  6. Step 6: Final answer
    x = 495.50

Related Problems

Find fourth proportional to 327.71, 491.56 and 165.17
Half scale
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Double scale
Find fourth proportional to 656.41, 984.62 and 331.33
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.