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Finding the Fourth Proportional to 373,839.33, 515,880.18 and 212,679.30

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Solution

The fourth proportional to 373,839.33, 515,880.18 and 212,679.30 is: 293,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,839.33 : 515,880.18 = 212,679.30 : x
  2. Step 2: Convert to fraction form
    373,839.33/515,880.18 = 212,679.30/x
  3. Step 3: Cross multiply
    373,839.33x = 515,880.18 × 212,679.30
  4. Step 4: Simplify right side
    373,839.33x = 109,717,035,566.27
  5. Step 5: Solve for x
    x = 109,717,035,566.27/373,839.33
  6. Step 6: Final answer
    x = 293,487.14

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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.