Home / 287,437.12-396,632.96-166,616.32

Finding the Fourth Proportional to 287,437.12, 396,632.96 and 166,616.32

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Solution

The fourth proportional to 287,437.12, 396,632.96 and 166,616.32 is: 229,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,437.12 : 396,632.96 = 166,616.32 : x
  2. Step 2: Convert to fraction form
    287,437.12/396,632.96 = 166,616.32/x
  3. Step 3: Cross multiply
    287,437.12x = 396,632.96 × 166,616.32
  4. Step 4: Simplify right side
    287,437.12x = 66,085,524,185.91
  5. Step 5: Solve for x
    x = 66,085,524,185.91/287,437.12
  6. Step 6: Final answer
    x = 229,912.98

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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.