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Finding the Fourth Proportional to 253,229.01, 379,703.28 and 103,574.39

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Solution

The fourth proportional to 253,229.01, 379,703.28 and 103,574.39 is: 155,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,229.01 : 379,703.28 = 103,574.39 : x
  2. Step 2: Convert to fraction form
    253,229.01/379,703.28 = 103,574.39/x
  3. Step 3: Cross multiply
    253,229.01x = 379,703.28 × 103,574.39
  4. Step 4: Simplify right side
    253,229.01x = 39,327,535,607.00
  5. Step 5: Solve for x
    x = 39,327,535,607.00/253,229.01
  6. Step 6: Final answer
    x = 155,304.23

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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.