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Finding the Fourth Proportional to 662.20, 993.30 and 373.60

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Solution

The fourth proportional to 662.20, 993.30 and 373.60 is: 560.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.20 : 993.30 = 373.60 : x
  2. Step 2: Convert to fraction form
    662.20/993.30 = 373.60/x
  3. Step 3: Cross multiply
    662.20x = 993.30 × 373.60
  4. Step 4: Simplify right side
    662.20x = 371,096.88
  5. Step 5: Solve for x
    x = 371,096.88/662.20
  6. Step 6: Final answer
    x = 560.40

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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.