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Finding the Fourth Proportional to 287,226.49, 396,114.51 and 179,806.30

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Solution

The fourth proportional to 287,226.49, 396,114.51 and 179,806.30 is: 247,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,226.49 : 396,114.51 = 179,806.30 : x
  2. Step 2: Convert to fraction form
    287,226.49/396,114.51 = 179,806.30/x
  3. Step 3: Cross multiply
    287,226.49x = 396,114.51 × 179,806.30
  4. Step 4: Simplify right side
    287,226.49x = 71,223,884,419.41
  5. Step 5: Solve for x
    x = 71,223,884,419.41/287,226.49
  6. Step 6: Final answer
    x = 247,971.15

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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.