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Finding the Fourth Proportional to 287,177.65, 396,298.42 and 159,850.51

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Solution

The fourth proportional to 287,177.65, 396,298.42 and 159,850.51 is: 220,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,177.65 : 396,298.42 = 159,850.51 : x
  2. Step 2: Convert to fraction form
    287,177.65/396,298.42 = 159,850.51/x
  3. Step 3: Cross multiply
    287,177.65x = 396,298.42 × 159,850.51
  4. Step 4: Simplify right side
    287,177.65x = 63,348,504,549.19
  5. Step 5: Solve for x
    x = 63,348,504,549.19/287,177.65
  6. Step 6: Final answer
    x = 220,589.95

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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.