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Finding the Fourth Proportional to 202,372.68, 303,563.14 and 69,405.78

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Solution

The fourth proportional to 202,372.68, 303,563.14 and 69,405.78 is: 104,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,372.68 : 303,563.14 = 69,405.78 : x
  2. Step 2: Convert to fraction form
    202,372.68/303,563.14 = 69,405.78/x
  3. Step 3: Cross multiply
    202,372.68x = 303,563.14 × 69,405.78
  4. Step 4: Simplify right side
    202,372.68x = 21,069,036,510.95
  5. Step 5: Solve for x
    x = 21,069,036,510.95/202,372.68
  6. Step 6: Final answer
    x = 104,110.08

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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.