Home / 287,325.72-396,319.50-179,708.92

Finding the Fourth Proportional to 287,325.72, 396,319.50 and 179,708.92

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Solution

The fourth proportional to 287,325.72, 396,319.50 and 179,708.92 is: 247,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,325.72 : 396,319.50 = 179,708.92 : x
  2. Step 2: Convert to fraction form
    287,325.72/396,319.50 = 179,708.92/x
  3. Step 3: Cross multiply
    287,325.72x = 396,319.50 × 179,708.92
  4. Step 4: Simplify right side
    287,325.72x = 71,222,149,319.94
  5. Step 5: Solve for x
    x = 71,222,149,319.94/287,325.72
  6. Step 6: Final answer
    x = 247,879.48

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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.