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Finding the Fourth Proportional to 255.58, 383.38 and 93.26

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Solution

The fourth proportional to 255.58, 383.38 and 93.26 is: 139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.58 : 383.38 = 93.26 : x
  2. Step 2: Convert to fraction form
    255.58/383.38 = 93.26/x
  3. Step 3: Cross multiply
    255.58x = 383.38 × 93.26
  4. Step 4: Simplify right side
    255.58x = 35,754.02
  5. Step 5: Solve for x
    x = 35,754.02/255.58
  6. Step 6: Final answer
    x = 139.89

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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.