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Finding the Fourth Proportional to 253,871.49, 350,346.50 and 139,149.24

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Solution

The fourth proportional to 253,871.49, 350,346.50 and 139,149.24 is: 192,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,871.49 : 350,346.50 = 139,149.24 : x
  2. Step 2: Convert to fraction form
    253,871.49/350,346.50 = 139,149.24/x
  3. Step 3: Cross multiply
    253,871.49x = 350,346.50 × 139,149.24
  4. Step 4: Simplify right side
    253,871.49x = 48,750,448,515.91
  5. Step 5: Solve for x
    x = 48,750,448,515.91/253,871.49
  6. Step 6: Final answer
    x = 192,028.06

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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.