Home / 203,222.13-280,443.51-112,577.82

Finding the Fourth Proportional to 203,222.13, 280,443.51 and 112,577.82

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Solution

The fourth proportional to 203,222.13, 280,443.51 and 112,577.82 is: 155,355.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,222.13 : 280,443.51 = 112,577.82 : x
  2. Step 2: Convert to fraction form
    203,222.13/280,443.51 = 112,577.82/x
  3. Step 3: Cross multiply
    203,222.13x = 280,443.51 × 112,577.82
  4. Step 4: Simplify right side
    203,222.13x = 31,571,718,988.95
  5. Step 5: Solve for x
    x = 31,571,718,988.95/203,222.13
  6. Step 6: Final answer
    x = 155,355.71

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1.5x scale

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.