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Finding the Fourth Proportional to 198,001, 273,129.60 and 117,349.30

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Solution

The fourth proportional to 198,001, 273,129.60 and 117,349.30 is: 161,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,001 : 273,129.60 = 117,349.30 : x
  2. Step 2: Convert to fraction form
    198,001/273,129.60 = 117,349.30/x
  3. Step 3: Cross multiply
    198,001x = 273,129.60 × 117,349.30
  4. Step 4: Simplify right side
    198,001x = 32,051,567,369.28
  5. Step 5: Solve for x
    x = 32,051,567,369.28/198,001
  6. Step 6: Final answer
    x = 161,875.79

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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.