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Finding the Fourth Proportional to 202,818.75, 304,163.43 and 69,666.90

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Solution

The fourth proportional to 202,818.75, 304,163.43 and 69,666.90 is: 104,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,818.75 : 304,163.43 = 69,666.90 : x
  2. Step 2: Convert to fraction form
    202,818.75/304,163.43 = 69,666.90/x
  3. Step 3: Cross multiply
    202,818.75x = 304,163.43 × 69,666.90
  4. Step 4: Simplify right side
    202,818.75x = 21,190,123,261.47
  5. Step 5: Solve for x
    x = 21,190,123,261.47/202,818.75
  6. Step 6: Final answer
    x = 104,478.13

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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.