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Finding the Fourth Proportional to 374,143.46, 515,268.34 and 350,129.66

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Solution

The fourth proportional to 374,143.46, 515,268.34 and 350,129.66 is: 482,196.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,143.46 : 515,268.34 = 350,129.66 : x
  2. Step 2: Convert to fraction form
    374,143.46/515,268.34 = 350,129.66/x
  3. Step 3: Cross multiply
    374,143.46x = 515,268.34 × 350,129.66
  4. Step 4: Simplify right side
    374,143.46x = 180,410,725,241.30
  5. Step 5: Solve for x
    x = 180,410,725,241.30/374,143.46
  6. Step 6: Final answer
    x = 482,196.66

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1.5x scale

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.