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Finding the Fourth Proportional to 219,198.53, 302,470.88 and 127,299.87

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Solution

The fourth proportional to 219,198.53, 302,470.88 and 127,299.87 is: 175,660.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,198.53 : 302,470.88 = 127,299.87 : x
  2. Step 2: Convert to fraction form
    219,198.53/302,470.88 = 127,299.87/x
  3. Step 3: Cross multiply
    219,198.53x = 302,470.88 × 127,299.87
  4. Step 4: Simplify right side
    219,198.53x = 38,504,503,066.29
  5. Step 5: Solve for x
    x = 38,504,503,066.29/219,198.53
  6. Step 6: Final answer
    x = 175,660.41

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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.