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Finding the Fourth Proportional to 500.69, 751.02 and 135.51

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Solution

The fourth proportional to 500.69, 751.02 and 135.51 is: 203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.69 : 751.02 = 135.51 : x
  2. Step 2: Convert to fraction form
    500.69/751.02 = 135.51/x
  3. Step 3: Cross multiply
    500.69x = 751.02 × 135.51
  4. Step 4: Simplify right side
    500.69x = 101,770.72
  5. Step 5: Solve for x
    x = 101,770.72/500.69
  6. Step 6: Final answer
    x = 203.26

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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.