Home / 648,251.10-972,522.45-198,992.70

Finding the Fourth Proportional to 648,251.10, 972,522.45 and 198,992.70

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Solution

The fourth proportional to 648,251.10, 972,522.45 and 198,992.70 is: 298,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,251.10 : 972,522.45 = 198,992.70 : x
  2. Step 2: Convert to fraction form
    648,251.10/972,522.45 = 198,992.70/x
  3. Step 3: Cross multiply
    648,251.10x = 972,522.45 × 198,992.70
  4. Step 4: Simplify right side
    648,251.10x = 193,524,868,136.12
  5. Step 5: Solve for x
    x = 193,524,868,136.12/648,251.10
  6. Step 6: Final answer
    x = 298,533.81

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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.