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Finding the Fourth Proportional to 202,640.99, 303,967.65 and 69,519.35

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Solution

The fourth proportional to 202,640.99, 303,967.65 and 69,519.35 is: 104,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,640.99 : 303,967.65 = 69,519.35 : x
  2. Step 2: Convert to fraction form
    202,640.99/303,967.65 = 69,519.35/x
  3. Step 3: Cross multiply
    202,640.99x = 303,967.65 × 69,519.35
  4. Step 4: Simplify right side
    202,640.99x = 21,131,634,208.95
  5. Step 5: Solve for x
    x = 21,131,634,208.95/202,640.99
  6. Step 6: Final answer
    x = 104,281.15

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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.