Home / 212,016-292,406.82-143,921.04

Finding the Fourth Proportional to 212,016, 292,406.82 and 143,921.04

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Solution

The fourth proportional to 212,016, 292,406.82 and 143,921.04 is: 198,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,016 : 292,406.82 = 143,921.04 : x
  2. Step 2: Convert to fraction form
    212,016/292,406.82 = 143,921.04/x
  3. Step 3: Cross multiply
    212,016x = 292,406.82 × 143,921.04
  4. Step 4: Simplify right side
    212,016x = 42,083,493,637.49
  5. Step 5: Solve for x
    x = 42,083,493,637.49/212,016
  6. Step 6: Final answer
    x = 198,492.06

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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.