Home / 287,318.76-396,499.86-166,530.12

Finding the Fourth Proportional to 287,318.76, 396,499.86 and 166,530.12

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Solution

The fourth proportional to 287,318.76, 396,499.86 and 166,530.12 is: 229,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,318.76 : 396,499.86 = 166,530.12 : x
  2. Step 2: Convert to fraction form
    287,318.76/396,499.86 = 166,530.12/x
  3. Step 3: Cross multiply
    287,318.76x = 396,499.86 × 166,530.12
  4. Step 4: Simplify right side
    287,318.76x = 66,029,169,265.78
  5. Step 5: Solve for x
    x = 66,029,169,265.78/287,318.76
  6. Step 6: Final answer
    x = 229,811.55

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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.