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Finding the Fourth Proportional to 500.97, 751.43 and 135.74

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Solution

The fourth proportional to 500.97, 751.43 and 135.74 is: 203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.97 : 751.43 = 135.74 : x
  2. Step 2: Convert to fraction form
    500.97/751.43 = 135.74/x
  3. Step 3: Cross multiply
    500.97x = 751.43 × 135.74
  4. Step 4: Simplify right side
    500.97x = 101,994.67
  5. Step 5: Solve for x
    x = 101,994.67/500.97
  6. Step 6: Final answer
    x = 203.59

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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.