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Finding the Fourth Proportional to 1,503.73, 2,255.04 and 516.34

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Solution

The fourth proportional to 1,503.73, 2,255.04 and 516.34 is: 774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.73 : 2,255.04 = 516.34 : x
  2. Step 2: Convert to fraction form
    1,503.73/2,255.04 = 516.34/x
  3. Step 3: Cross multiply
    1,503.73x = 2,255.04 × 516.34
  4. Step 4: Simplify right side
    1,503.73x = 1,164,364.77
  5. Step 5: Solve for x
    x = 1,164,364.77/1,503.73
  6. Step 6: Final answer
    x = 774.32

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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.