Home / 648,255.22-972,385.14-198,976.13

Finding the Fourth Proportional to 648,255.22, 972,385.14 and 198,976.13

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Solution

The fourth proportional to 648,255.22, 972,385.14 and 198,976.13 is: 298,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,255.22 : 972,385.14 = 198,976.13 : x
  2. Step 2: Convert to fraction form
    648,255.22/972,385.14 = 198,976.13/x
  3. Step 3: Cross multiply
    648,255.22x = 972,385.14 × 198,976.13
  4. Step 4: Simplify right side
    648,255.22x = 193,481,427,967.31
  5. Step 5: Solve for x
    x = 193,481,427,967.31/648,255.22
  6. Step 6: Final answer
    x = 298,464.90

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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.