Home / 287,195.12-396,300.64-166,375.32

Finding the Fourth Proportional to 287,195.12, 396,300.64 and 166,375.32

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Solution

The fourth proportional to 287,195.12, 396,300.64 and 166,375.32 is: 229,581.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,195.12 : 396,300.64 = 166,375.32 : x
  2. Step 2: Convert to fraction form
    287,195.12/396,300.64 = 166,375.32/x
  3. Step 3: Cross multiply
    287,195.12x = 396,300.64 × 166,375.32
  4. Step 4: Simplify right side
    287,195.12x = 65,934,645,796.20
  5. Step 5: Solve for x
    x = 65,934,645,796.20/287,195.12
  6. Step 6: Final answer
    x = 229,581.36

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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.