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Finding the Fourth Proportional to 220,138.75, 303,791.88 and 119,536.75

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Solution

The fourth proportional to 220,138.75, 303,791.88 and 119,536.75 is: 164,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,138.75 : 303,791.88 = 119,536.75 : x
  2. Step 2: Convert to fraction form
    220,138.75/303,791.88 = 119,536.75/x
  3. Step 3: Cross multiply
    220,138.75x = 303,791.88 × 119,536.75
  4. Step 4: Simplify right side
    220,138.75x = 36,314,294,011.59
  5. Step 5: Solve for x
    x = 36,314,294,011.59/220,138.75
  6. Step 6: Final answer
    x = 164,960.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.