Home / 287,426.34-396,622.62-160,099.20

Finding the Fourth Proportional to 287,426.34, 396,622.62 and 160,099.20

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Solution

The fourth proportional to 287,426.34, 396,622.62 and 160,099.20 is: 220,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,426.34 : 396,622.62 = 160,099.20 : x
  2. Step 2: Convert to fraction form
    287,426.34/396,622.62 = 160,099.20/x
  3. Step 3: Cross multiply
    287,426.34x = 396,622.62 × 160,099.20
  4. Step 4: Simplify right side
    287,426.34x = 63,498,964,163.90
  5. Step 5: Solve for x
    x = 63,498,964,163.90/287,426.34
  6. Step 6: Final answer
    x = 220,922.56

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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.