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Finding the Fourth Proportional to 200,472.09, 300,753 and 67,348.71

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Solution

The fourth proportional to 200,472.09, 300,753 and 67,348.71 is: 101,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,472.09 : 300,753 = 67,348.71 : x
  2. Step 2: Convert to fraction form
    200,472.09/300,753 = 67,348.71/x
  3. Step 3: Cross multiply
    200,472.09x = 300,753 × 67,348.71
  4. Step 4: Simplify right side
    200,472.09x = 20,255,326,578.63
  5. Step 5: Solve for x
    x = 20,255,326,578.63/200,472.09
  6. Step 6: Final answer
    x = 101,038.14

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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.