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Finding the Fourth Proportional to 151,206.40, 226,809.60 and 87,961.60

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Solution

The fourth proportional to 151,206.40, 226,809.60 and 87,961.60 is: 131,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,206.40 : 226,809.60 = 87,961.60 : x
  2. Step 2: Convert to fraction form
    151,206.40/226,809.60 = 87,961.60/x
  3. Step 3: Cross multiply
    151,206.40x = 226,809.60 × 87,961.60
  4. Step 4: Simplify right side
    151,206.40x = 19,950,535,311.36
  5. Step 5: Solve for x
    x = 19,950,535,311.36/151,206.40
  6. Step 6: Final answer
    x = 131,942.40

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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.