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Finding the Fourth Proportional to 253,321.04, 349,600.20 and 145,919.44

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Solution

The fourth proportional to 253,321.04, 349,600.20 and 145,919.44 is: 201,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,321.04 : 349,600.20 = 145,919.44 : x
  2. Step 2: Convert to fraction form
    253,321.04/349,600.20 = 145,919.44/x
  3. Step 3: Cross multiply
    253,321.04x = 349,600.20 × 145,919.44
  4. Step 4: Simplify right side
    253,321.04x = 51,013,465,407.89
  5. Step 5: Solve for x
    x = 51,013,465,407.89/253,321.04
  6. Step 6: Final answer
    x = 201,378.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.