Home / 205,538.20-308,307.30-57,794.20

Finding the Fourth Proportional to 205,538.20, 308,307.30 and 57,794.20

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Solution

The fourth proportional to 205,538.20, 308,307.30 and 57,794.20 is: 86,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,538.20 : 308,307.30 = 57,794.20 : x
  2. Step 2: Convert to fraction form
    205,538.20/308,307.30 = 57,794.20/x
  3. Step 3: Cross multiply
    205,538.20x = 308,307.30 × 57,794.20
  4. Step 4: Simplify right side
    205,538.20x = 17,818,373,757.66
  5. Step 5: Solve for x
    x = 17,818,373,757.66/205,538.20
  6. Step 6: Final answer
    x = 86,691.30

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1.5x scale

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.