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Finding the Fourth Proportional to 255.60, 385.47 and 241.56

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Solution

The fourth proportional to 255.60, 385.47 and 241.56 is: 364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.60 : 385.47 = 241.56 : x
  2. Step 2: Convert to fraction form
    255.60/385.47 = 241.56/x
  3. Step 3: Cross multiply
    255.60x = 385.47 × 241.56
  4. Step 4: Simplify right side
    255.60x = 93,114.13
  5. Step 5: Solve for x
    x = 93,114.13/255.60
  6. Step 6: Final answer
    x = 364.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.