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Finding the Fourth Proportional to 325,805.32, 449,611.05 and 180,620.38

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Solution

The fourth proportional to 325,805.32, 449,611.05 and 180,620.38 is: 249,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,805.32 : 449,611.05 = 180,620.38 : x
  2. Step 2: Convert to fraction form
    325,805.32/449,611.05 = 180,620.38/x
  3. Step 3: Cross multiply
    325,805.32x = 449,611.05 × 180,620.38
  4. Step 4: Simplify right side
    325,805.32x = 81,208,918,703.20
  5. Step 5: Solve for x
    x = 81,208,918,703.20/325,805.32
  6. Step 6: Final answer
    x = 249,255.96

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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.