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Finding the Fourth Proportional to 287,218.96, 396,104.16 and 179,798.80

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Solution

The fourth proportional to 287,218.96, 396,104.16 and 179,798.80 is: 247,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,218.96 : 396,104.16 = 179,798.80 : x
  2. Step 2: Convert to fraction form
    287,218.96/396,104.16 = 179,798.80/x
  3. Step 3: Cross multiply
    287,218.96x = 396,104.16 × 179,798.80
  4. Step 4: Simplify right side
    287,218.96x = 71,219,052,643.01
  5. Step 5: Solve for x
    x = 71,219,052,643.01/287,218.96
  6. Step 6: Final answer
    x = 247,960.83

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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.