Home / 259,538.08-389,307.12-101,840.80

Finding the Fourth Proportional to 259,538.08, 389,307.12 and 101,840.80

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Solution

The fourth proportional to 259,538.08, 389,307.12 and 101,840.80 is: 152,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,538.08 : 389,307.12 = 101,840.80 : x
  2. Step 2: Convert to fraction form
    259,538.08/389,307.12 = 101,840.80/x
  3. Step 3: Cross multiply
    259,538.08x = 389,307.12 × 101,840.80
  4. Step 4: Simplify right side
    259,538.08x = 39,647,348,546.50
  5. Step 5: Solve for x
    x = 39,647,348,546.50/259,538.08
  6. Step 6: Final answer
    x = 152,761.20

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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.