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Finding the Fourth Proportional to 339,642, 468,586.49 and 203,719.95

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Solution

The fourth proportional to 339,642, 468,586.49 and 203,719.95 is: 281,061.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,642 : 468,586.49 = 203,719.95 : x
  2. Step 2: Convert to fraction form
    339,642/468,586.49 = 203,719.95/x
  3. Step 3: Cross multiply
    339,642x = 468,586.49 × 203,719.95
  4. Step 4: Simplify right side
    339,642x = 95,460,415,294.88
  5. Step 5: Solve for x
    x = 95,460,415,294.88/339,642
  6. Step 6: Final answer
    x = 281,061.87

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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.