Home / 205,649.30-308,495.85-65,375.12

Finding the Fourth Proportional to 205,649.30, 308,495.85 and 65,375.12

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Solution

The fourth proportional to 205,649.30, 308,495.85 and 65,375.12 is: 98,069.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,649.30 : 308,495.85 = 65,375.12 : x
  2. Step 2: Convert to fraction form
    205,649.30/308,495.85 = 65,375.12/x
  3. Step 3: Cross multiply
    205,649.30x = 308,495.85 × 65,375.12
  4. Step 4: Simplify right side
    205,649.30x = 20,167,953,213.25
  5. Step 5: Solve for x
    x = 20,167,953,213.25/205,649.30
  6. Step 6: Final answer
    x = 98,069.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.