Home / 316,991.28-437,492.82-196,171.50

Finding the Fourth Proportional to 316,991.28, 437,492.82 and 196,171.50

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Solution

The fourth proportional to 316,991.28, 437,492.82 and 196,171.50 is: 270,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,991.28 : 437,492.82 = 196,171.50 : x
  2. Step 2: Convert to fraction form
    316,991.28/437,492.82 = 196,171.50/x
  3. Step 3: Cross multiply
    316,991.28x = 437,492.82 × 196,171.50
  4. Step 4: Simplify right side
    316,991.28x = 85,823,622,738.63
  5. Step 5: Solve for x
    x = 85,823,622,738.63/316,991.28
  6. Step 6: Final answer
    x = 270,744.43

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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.