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Finding the Fourth Proportional to 374,144.96, 515,270.40 and 350,131.16

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Solution

The fourth proportional to 374,144.96, 515,270.40 and 350,131.16 is: 482,198.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,144.96 : 515,270.40 = 350,131.16 : x
  2. Step 2: Convert to fraction form
    374,144.96/515,270.40 = 350,131.16/x
  3. Step 3: Cross multiply
    374,144.96x = 515,270.40 × 350,131.16
  4. Step 4: Simplify right side
    374,144.96x = 180,412,220,289.31
  5. Step 5: Solve for x
    x = 180,412,220,289.31/374,144.96
  6. Step 6: Final answer
    x = 482,198.73

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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.