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Finding the Fourth Proportional to 287,229.49, 396,118.65 and 179,809.30

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Solution

The fourth proportional to 287,229.49, 396,118.65 and 179,809.30 is: 247,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,229.49 : 396,118.65 = 179,809.30 : x
  2. Step 2: Convert to fraction form
    287,229.49/396,118.65 = 179,809.30/x
  3. Step 3: Cross multiply
    287,229.49x = 396,118.65 × 179,809.30
  4. Step 4: Simplify right side
    287,229.49x = 71,225,817,173.45
  5. Step 5: Solve for x
    x = 71,225,817,173.45/287,229.49
  6. Step 6: Final answer
    x = 247,975.29

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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.