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Finding the Fourth Proportional to 655.53, 982.59 and 265.48

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Solution

The fourth proportional to 655.53, 982.59 and 265.48 is: 397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.53 : 982.59 = 265.48 : x
  2. Step 2: Convert to fraction form
    655.53/982.59 = 265.48/x
  3. Step 3: Cross multiply
    655.53x = 982.59 × 265.48
  4. Step 4: Simplify right side
    655.53x = 260,856.41
  5. Step 5: Solve for x
    x = 260,856.41/655.53
  6. Step 6: Final answer
    x = 397.93

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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.