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Finding the Fourth Proportional to 197,341, 272,330.58 and 107,917

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Solution

The fourth proportional to 197,341, 272,330.58 and 107,917 is: 148,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,341 : 272,330.58 = 107,917 : x
  2. Step 2: Convert to fraction form
    197,341/272,330.58 = 107,917/x
  3. Step 3: Cross multiply
    197,341x = 272,330.58 × 107,917
  4. Step 4: Simplify right side
    197,341x = 29,389,099,201.86
  5. Step 5: Solve for x
    x = 29,389,099,201.86/197,341
  6. Step 6: Final answer
    x = 148,925.46

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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.