Home / 205,862.88-284,050.40-115,222.80

Finding the Fourth Proportional to 205,862.88, 284,050.40 and 115,222.80

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Solution

The fourth proportional to 205,862.88, 284,050.40 and 115,222.80 is: 158,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,862.88 : 284,050.40 = 115,222.80 : x
  2. Step 2: Convert to fraction form
    205,862.88/284,050.40 = 115,222.80/x
  3. Step 3: Cross multiply
    205,862.88x = 284,050.40 × 115,222.80
  4. Step 4: Simplify right side
    205,862.88x = 32,729,082,429.12
  5. Step 5: Solve for x
    x = 32,729,082,429.12/205,862.88
  6. Step 6: Final answer
    x = 158,984.87

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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.