Home / 287,656.20-396,964.26-166,867.56

Finding the Fourth Proportional to 287,656.20, 396,964.26 and 166,867.56

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Solution

The fourth proportional to 287,656.20, 396,964.26 and 166,867.56 is: 230,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,656.20 : 396,964.26 = 166,867.56 : x
  2. Step 2: Convert to fraction form
    287,656.20/396,964.26 = 166,867.56/x
  3. Step 3: Cross multiply
    287,656.20x = 396,964.26 × 166,867.56
  4. Step 4: Simplify right side
    287,656.20x = 66,240,457,473.41
  5. Step 5: Solve for x
    x = 66,240,457,473.41/287,656.20
  6. Step 6: Final answer
    x = 230,276.48

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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.