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Finding the Fourth Proportional to 437.10, 654.85 and 368.30

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Solution

The fourth proportional to 437.10, 654.85 and 368.30 is: 551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.10 : 654.85 = 368.30 : x
  2. Step 2: Convert to fraction form
    437.10/654.85 = 368.30/x
  3. Step 3: Cross multiply
    437.10x = 654.85 × 368.30
  4. Step 4: Simplify right side
    437.10x = 241,181.26
  5. Step 5: Solve for x
    x = 241,181.26/437.10
  6. Step 6: Final answer
    x = 551.78

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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.