Home / 287,318.26-396,499.20-166,529.62

Finding the Fourth Proportional to 287,318.26, 396,499.20 and 166,529.62

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Solution

The fourth proportional to 287,318.26, 396,499.20 and 166,529.62 is: 229,810.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,318.26 : 396,499.20 = 166,529.62 : x
  2. Step 2: Convert to fraction form
    287,318.26/396,499.20 = 166,529.62/x
  3. Step 3: Cross multiply
    287,318.26x = 396,499.20 × 166,529.62
  4. Step 4: Simplify right side
    287,318.26x = 66,028,861,106.30
  5. Step 5: Solve for x
    x = 66,028,861,106.30/287,318.26
  6. Step 6: Final answer
    x = 229,810.88

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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.