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Finding the Fourth Proportional to 272,371.82, 375,875.97 and 149,865.78

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Solution

The fourth proportional to 272,371.82, 375,875.97 and 149,865.78 is: 206,816.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,371.82 : 375,875.97 = 149,865.78 : x
  2. Step 2: Convert to fraction form
    272,371.82/375,875.97 = 149,865.78/x
  3. Step 3: Cross multiply
    272,371.82x = 375,875.97 × 149,865.78
  4. Step 4: Simplify right side
    272,371.82x = 56,330,945,427.31
  5. Step 5: Solve for x
    x = 56,330,945,427.31/272,371.82
  6. Step 6: Final answer
    x = 206,816.35

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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.