Home / 212,016.21-318,022.70-54,244.41

Finding the Fourth Proportional to 212,016.21, 318,022.70 and 54,244.41

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Solution

The fourth proportional to 212,016.21, 318,022.70 and 54,244.41 is: 81,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,016.21 : 318,022.70 = 54,244.41 : x
  2. Step 2: Convert to fraction form
    212,016.21/318,022.70 = 54,244.41/x
  3. Step 3: Cross multiply
    212,016.21x = 318,022.70 × 54,244.41
  4. Step 4: Simplify right side
    212,016.21x = 17,250,953,456.89
  5. Step 5: Solve for x
    x = 17,250,953,456.89/212,016.21
  6. Step 6: Final answer
    x = 81,366.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.