Home / 422,455.40-633,672.03-141,972.56

Finding the Fourth Proportional to 422,455.40, 633,672.03 and 141,972.56

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Solution

The fourth proportional to 422,455.40, 633,672.03 and 141,972.56 is: 212,955.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,455.40 : 633,672.03 = 141,972.56 : x
  2. Step 2: Convert to fraction form
    422,455.40/633,672.03 = 141,972.56/x
  3. Step 3: Cross multiply
    422,455.40x = 633,672.03 × 141,972.56
  4. Step 4: Simplify right side
    422,455.40x = 89,964,040,299.50
  5. Step 5: Solve for x
    x = 89,964,040,299.50/422,455.40
  6. Step 6: Final answer
    x = 212,955.12

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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.