Home / 287,422.12-396,612.24-166,601.32

Finding the Fourth Proportional to 287,422.12, 396,612.24 and 166,601.32

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Solution

The fourth proportional to 287,422.12, 396,612.24 and 166,601.32 is: 229,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,422.12 : 396,612.24 = 166,601.32 : x
  2. Step 2: Convert to fraction form
    287,422.12/396,612.24 = 166,601.32/x
  3. Step 3: Cross multiply
    287,422.12x = 396,612.24 × 166,601.32
  4. Step 4: Simplify right side
    287,422.12x = 66,076,122,712.16
  5. Step 5: Solve for x
    x = 66,076,122,712.16/287,422.12
  6. Step 6: Final answer
    x = 229,892.27

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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.