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Finding the Fourth Proportional to 200,708.77, 300,472.67 and 133,983.40

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Solution

The fourth proportional to 200,708.77, 300,472.67 and 133,983.40 is: 200,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,708.77 : 300,472.67 = 133,983.40 : x
  2. Step 2: Convert to fraction form
    200,708.77/300,472.67 = 133,983.40/x
  3. Step 3: Cross multiply
    200,708.77x = 300,472.67 × 133,983.40
  4. Step 4: Simplify right side
    200,708.77x = 40,258,349,933.68
  5. Step 5: Solve for x
    x = 40,258,349,933.68/200,708.77
  6. Step 6: Final answer
    x = 200,580.92

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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.