Home / 206,218.89-284,558.40-120,196.08

Finding the Fourth Proportional to 206,218.89, 284,558.40 and 120,196.08

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Solution

The fourth proportional to 206,218.89, 284,558.40 and 120,196.08 is: 165,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,218.89 : 284,558.40 = 120,196.08 : x
  2. Step 2: Convert to fraction form
    206,218.89/284,558.40 = 120,196.08/x
  3. Step 3: Cross multiply
    206,218.89x = 284,558.40 × 120,196.08
  4. Step 4: Simplify right side
    206,218.89x = 34,202,804,211.07
  5. Step 5: Solve for x
    x = 34,202,804,211.07/206,218.89
  6. Step 6: Final answer
    x = 165,856.80

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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.