Home / 287,605.45-396,896.85-166,818.25

Finding the Fourth Proportional to 287,605.45, 396,896.85 and 166,818.25

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Solution

The fourth proportional to 287,605.45, 396,896.85 and 166,818.25 is: 230,209.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,605.45 : 396,896.85 = 166,818.25 : x
  2. Step 2: Convert to fraction form
    287,605.45/396,896.85 = 166,818.25/x
  3. Step 3: Cross multiply
    287,605.45x = 396,896.85 × 166,818.25
  4. Step 4: Simplify right side
    287,605.45x = 66,209,635,128.94
  5. Step 5: Solve for x
    x = 66,209,635,128.94/287,605.45
  6. Step 6: Final answer
    x = 230,209.95

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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.