Home / 436,932.78-655,403.49-137,406.66

Finding the Fourth Proportional to 436,932.78, 655,403.49 and 137,406.66

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Solution

The fourth proportional to 436,932.78, 655,403.49 and 137,406.66 is: 206,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,932.78 : 655,403.49 = 137,406.66 : x
  2. Step 2: Convert to fraction form
    436,932.78/655,403.49 = 137,406.66/x
  3. Step 3: Cross multiply
    436,932.78x = 655,403.49 × 137,406.66
  4. Step 4: Simplify right side
    436,932.78x = 90,056,804,513.24
  5. Step 5: Solve for x
    x = 90,056,804,513.24/436,932.78
  6. Step 6: Final answer
    x = 206,111.35

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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.