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Finding the Fourth Proportional to 197,334, 272,320.92 and 107,910

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Solution

The fourth proportional to 197,334, 272,320.92 and 107,910 is: 148,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,334 : 272,320.92 = 107,910 : x
  2. Step 2: Convert to fraction form
    197,334/272,320.92 = 107,910/x
  3. Step 3: Cross multiply
    197,334x = 272,320.92 × 107,910
  4. Step 4: Simplify right side
    197,334x = 29,386,150,477.20
  5. Step 5: Solve for x
    x = 29,386,150,477.20/197,334
  6. Step 6: Final answer
    x = 148,915.80

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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.