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Finding the Fourth Proportional to 202,655.88, 303,990 and 69,534.28

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Solution

The fourth proportional to 202,655.88, 303,990 and 69,534.28 is: 104,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,655.88 : 303,990 = 69,534.28 : x
  2. Step 2: Convert to fraction form
    202,655.88/303,990 = 69,534.28/x
  3. Step 3: Cross multiply
    202,655.88x = 303,990 × 69,534.28
  4. Step 4: Simplify right side
    202,655.88x = 21,137,725,777.20
  5. Step 5: Solve for x
    x = 21,137,725,777.20/202,655.88
  6. Step 6: Final answer
    x = 104,303.54

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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.