Home / 287,112.28-396,208.92-166,275.40

Finding the Fourth Proportional to 287,112.28, 396,208.92 and 166,275.40

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Solution

The fourth proportional to 287,112.28, 396,208.92 and 166,275.40 is: 229,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,112.28 : 396,208.92 = 166,275.40 : x
  2. Step 2: Convert to fraction form
    287,112.28/396,208.92 = 166,275.40/x
  3. Step 3: Cross multiply
    287,112.28x = 396,208.92 × 166,275.40
  4. Step 4: Simplify right side
    287,112.28x = 65,879,796,656.57
  5. Step 5: Solve for x
    x = 65,879,796,656.57/287,112.28
  6. Step 6: Final answer
    x = 229,456.56

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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.