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Finding the Fourth Proportional to 197,980.38, 296,982.72 and 79,651.62

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Solution

The fourth proportional to 197,980.38, 296,982.72 and 79,651.62 is: 119,482.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,980.38 : 296,982.72 = 79,651.62 : x
  2. Step 2: Convert to fraction form
    197,980.38/296,982.72 = 79,651.62/x
  3. Step 3: Cross multiply
    197,980.38x = 296,982.72 × 79,651.62
  4. Step 4: Simplify right side
    197,980.38x = 23,655,154,760.01
  5. Step 5: Solve for x
    x = 23,655,154,760.01/197,980.38
  6. Step 6: Final answer
    x = 119,482.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.