Home / 287,651.32-396,972.44-160,327.84

Finding the Fourth Proportional to 287,651.32, 396,972.44 and 160,327.84

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Solution

The fourth proportional to 287,651.32, 396,972.44 and 160,327.84 is: 221,260.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,651.32 : 396,972.44 = 160,327.84 : x
  2. Step 2: Convert to fraction form
    287,651.32/396,972.44 = 160,327.84/x
  3. Step 3: Cross multiply
    287,651.32x = 396,972.44 × 160,327.84
  4. Step 4: Simplify right side
    287,651.32x = 63,645,733,844.73
  5. Step 5: Solve for x
    x = 63,645,733,844.73/287,651.32
  6. Step 6: Final answer
    x = 221,260.01

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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.