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Finding the Fourth Proportional to 217,715.58, 300,480.30 and 132,881.94

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Solution

The fourth proportional to 217,715.58, 300,480.30 and 132,881.94 is: 183,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,715.58 : 300,480.30 = 132,881.94 : x
  2. Step 2: Convert to fraction form
    217,715.58/300,480.30 = 132,881.94/x
  3. Step 3: Cross multiply
    217,715.58x = 300,480.30 × 132,881.94
  4. Step 4: Simplify right side
    217,715.58x = 39,928,405,195.78
  5. Step 5: Solve for x
    x = 39,928,405,195.78/217,715.58
  6. Step 6: Final answer
    x = 183,397.10

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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.