Home / 397,629.52-548,734.36-216,341.57

Finding the Fourth Proportional to 397,629.52, 548,734.36 and 216,341.57

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Solution

The fourth proportional to 397,629.52, 548,734.36 and 216,341.57 is: 298,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,629.52 : 548,734.36 = 216,341.57 : x
  2. Step 2: Convert to fraction form
    397,629.52/548,734.36 = 216,341.57/x
  3. Step 3: Cross multiply
    397,629.52x = 548,734.36 × 216,341.57
  4. Step 4: Simplify right side
    397,629.52x = 118,714,053,724.54
  5. Step 5: Solve for x
    x = 118,714,053,724.54/397,629.52
  6. Step 6: Final answer
    x = 298,554.43

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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.