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Finding the Fourth Proportional to 197,604, 272,693.52 and 108,180

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Solution

The fourth proportional to 197,604, 272,693.52 and 108,180 is: 149,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,604 : 272,693.52 = 108,180 : x
  2. Step 2: Convert to fraction form
    197,604/272,693.52 = 108,180/x
  3. Step 3: Cross multiply
    197,604x = 272,693.52 × 108,180
  4. Step 4: Simplify right side
    197,604x = 29,499,984,993.60
  5. Step 5: Solve for x
    x = 29,499,984,993.60/197,604
  6. Step 6: Final answer
    x = 149,288.40

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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.