Home / 217,938.42-300,753.87-122,444.28

Finding the Fourth Proportional to 217,938.42, 300,753.87 and 122,444.28

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Solution

The fourth proportional to 217,938.42, 300,753.87 and 122,444.28 is: 168,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,938.42 : 300,753.87 = 122,444.28 : x
  2. Step 2: Convert to fraction form
    217,938.42/300,753.87 = 122,444.28/x
  3. Step 3: Cross multiply
    217,938.42x = 300,753.87 × 122,444.28
  4. Step 4: Simplify right side
    217,938.42x = 36,825,591,069.36
  5. Step 5: Solve for x
    x = 36,825,591,069.36/217,938.42
  6. Step 6: Final answer
    x = 168,972.46

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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.