Home / 397,387.32-548,201.66-236,128.20

Finding the Fourth Proportional to 397,387.32, 548,201.66 and 236,128.20

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Solution

The fourth proportional to 397,387.32, 548,201.66 and 236,128.20 is: 325,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,387.32 : 548,201.66 = 236,128.20 : x
  2. Step 2: Convert to fraction form
    397,387.32/548,201.66 = 236,128.20/x
  3. Step 3: Cross multiply
    397,387.32x = 548,201.66 × 236,128.20
  4. Step 4: Simplify right side
    397,387.32x = 129,445,867,976.42
  5. Step 5: Solve for x
    x = 129,445,867,976.42/397,387.32
  6. Step 6: Final answer
    x = 325,742.32

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1.5x scale

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.