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Finding the Fourth Proportional to 373,475.81, 515,396.62 and 203,709.94

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Solution

The fourth proportional to 373,475.81, 515,396.62 and 203,709.94 is: 281,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,475.81 : 515,396.62 = 203,709.94 : x
  2. Step 2: Convert to fraction form
    373,475.81/515,396.62 = 203,709.94/x
  3. Step 3: Cross multiply
    373,475.81x = 515,396.62 × 203,709.94
  4. Step 4: Simplify right side
    373,475.81x = 104,991,413,502.55
  5. Step 5: Solve for x
    x = 104,991,413,502.55/373,475.81
  6. Step 6: Final answer
    x = 281,119.71

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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.