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Finding the Fourth Proportional to 379,338.66, 569,092.74 and 142,683.42

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Solution

The fourth proportional to 379,338.66, 569,092.74 and 142,683.42 is: 214,057.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,338.66 : 569,092.74 = 142,683.42 : x
  2. Step 2: Convert to fraction form
    379,338.66/569,092.74 = 142,683.42/x
  3. Step 3: Cross multiply
    379,338.66x = 569,092.74 × 142,683.42
  4. Step 4: Simplify right side
    379,338.66x = 81,200,098,440.37
  5. Step 5: Solve for x
    x = 81,200,098,440.37/379,338.66
  6. Step 6: Final answer
    x = 214,057.01

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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.