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Finding the Fourth Proportional to 272,410.91, 375,930.51 and 149,917.39

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Solution

The fourth proportional to 272,410.91, 375,930.51 and 149,917.39 is: 206,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,410.91 : 375,930.51 = 149,917.39 : x
  2. Step 2: Convert to fraction form
    272,410.91/375,930.51 = 149,917.39/x
  3. Step 3: Cross multiply
    272,410.91x = 375,930.51 × 149,917.39
  4. Step 4: Simplify right side
    272,410.91x = 56,358,518,251.33
  5. Step 5: Solve for x
    x = 56,358,518,251.33/272,410.91
  6. Step 6: Final answer
    x = 206,887.89

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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.