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Finding the Fourth Proportional to 662.80, 993.39 and 373.63

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Solution

The fourth proportional to 662.80, 993.39 and 373.63 is: 559.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.80 : 993.39 = 373.63 : x
  2. Step 2: Convert to fraction form
    662.80/993.39 = 373.63/x
  3. Step 3: Cross multiply
    662.80x = 993.39 × 373.63
  4. Step 4: Simplify right side
    662.80x = 371,160.31
  5. Step 5: Solve for x
    x = 371,160.31/662.80
  6. Step 6: Final answer
    x = 559.99

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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.