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Finding the Fourth Proportional to 202,379.47, 303,560.18 and 69,271.63

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Solution

The fourth proportional to 202,379.47, 303,560.18 and 69,271.63 is: 103,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,379.47 : 303,560.18 = 69,271.63 : x
  2. Step 2: Convert to fraction form
    202,379.47/303,560.18 = 69,271.63/x
  3. Step 3: Cross multiply
    202,379.47x = 303,560.18 × 69,271.63
  4. Step 4: Simplify right side
    202,379.47x = 21,028,108,471.69
  5. Step 5: Solve for x
    x = 21,028,108,471.69/202,379.47
  6. Step 6: Final answer
    x = 103,904.36

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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.