Home / 287,113.24-396,229.26-166,259.80

Finding the Fourth Proportional to 287,113.24, 396,229.26 and 166,259.80

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Solution

The fourth proportional to 287,113.24, 396,229.26 and 166,259.80 is: 229,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,113.24 : 396,229.26 = 166,259.80 : x
  2. Step 2: Convert to fraction form
    287,113.24/396,229.26 = 166,259.80/x
  3. Step 3: Cross multiply
    287,113.24x = 396,229.26 × 166,259.80
  4. Step 4: Simplify right side
    287,113.24x = 65,876,997,521.75
  5. Step 5: Solve for x
    x = 65,876,997,521.75/287,113.24
  6. Step 6: Final answer
    x = 229,446.05

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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.