Home / 222,312.45-306,968.09-205,310.49

Finding the Fourth Proportional to 222,312.45, 306,968.09 and 205,310.49

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Solution

The fourth proportional to 222,312.45, 306,968.09 and 205,310.49 is: 283,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,312.45 : 306,968.09 = 205,310.49 : x
  2. Step 2: Convert to fraction form
    222,312.45/306,968.09 = 205,310.49/x
  3. Step 3: Cross multiply
    222,312.45x = 306,968.09 × 205,310.49
  4. Step 4: Simplify right side
    222,312.45x = 63,023,768,972.26
  5. Step 5: Solve for x
    x = 63,023,768,972.26/222,312.45
  6. Step 6: Final answer
    x = 283,491.86

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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.