Home / 287,645.02-396,939.27-166,791.40

Finding the Fourth Proportional to 287,645.02, 396,939.27 and 166,791.40

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Solution

The fourth proportional to 287,645.02, 396,939.27 and 166,791.40 is: 230,165.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,645.02 : 396,939.27 = 166,791.40 : x
  2. Step 2: Convert to fraction form
    287,645.02/396,939.27 = 166,791.40/x
  3. Step 3: Cross multiply
    287,645.02x = 396,939.27 × 166,791.40
  4. Step 4: Simplify right side
    287,645.02x = 66,206,056,558.28
  5. Step 5: Solve for x
    x = 66,206,056,558.28/287,645.02
  6. Step 6: Final answer
    x = 230,165.84

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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.