Home / 287,221.75-396,353.23-164,626.25

Finding the Fourth Proportional to 287,221.75, 396,353.23 and 164,626.25

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Solution

The fourth proportional to 287,221.75, 396,353.23 and 164,626.25 is: 227,176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,221.75 : 396,353.23 = 164,626.25 : x
  2. Step 2: Convert to fraction form
    287,221.75/396,353.23 = 164,626.25/x
  3. Step 3: Cross multiply
    287,221.75x = 396,353.23 × 164,626.25
  4. Step 4: Simplify right side
    287,221.75x = 65,250,143,125.39
  5. Step 5: Solve for x
    x = 65,250,143,125.39/287,221.75
  6. Step 6: Final answer
    x = 227,176.89

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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.