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Finding the Fourth Proportional to 197,241, 272,192.58 and 107,817

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Solution

The fourth proportional to 197,241, 272,192.58 and 107,817 is: 148,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,241 : 272,192.58 = 107,817 : x
  2. Step 2: Convert to fraction form
    197,241/272,192.58 = 107,817/x
  3. Step 3: Cross multiply
    197,241x = 272,192.58 × 107,817
  4. Step 4: Simplify right side
    197,241x = 29,346,987,397.86
  5. Step 5: Solve for x
    x = 29,346,987,397.86/197,241
  6. Step 6: Final answer
    x = 148,787.46

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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.