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Finding the Fourth Proportional to 405.55, 607.96 and 241.32

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Solution

The fourth proportional to 405.55, 607.96 and 241.32 is: 361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405.55 : 607.96 = 241.32 : x
  2. Step 2: Convert to fraction form
    405.55/607.96 = 241.32/x
  3. Step 3: Cross multiply
    405.55x = 607.96 × 241.32
  4. Step 4: Simplify right side
    405.55x = 146,712.91
  5. Step 5: Solve for x
    x = 146,712.91/405.55
  6. Step 6: Final answer
    x = 361.76

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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.