Home / 245,813.30-339,222.02-138,418.04

Finding the Fourth Proportional to 245,813.30, 339,222.02 and 138,418.04

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Solution

The fourth proportional to 245,813.30, 339,222.02 and 138,418.04 is: 191,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,813.30 : 339,222.02 = 138,418.04 : x
  2. Step 2: Convert to fraction form
    245,813.30/339,222.02 = 138,418.04/x
  3. Step 3: Cross multiply
    245,813.30x = 339,222.02 × 138,418.04
  4. Step 4: Simplify right side
    245,813.30x = 46,954,444,745.04
  5. Step 5: Solve for x
    x = 46,954,444,745.04/245,813.30
  6. Step 6: Final answer
    x = 191,016.70

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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.