Home / 203,221.40-280,441.85-112,577.09

Finding the Fourth Proportional to 203,221.40, 280,441.85 and 112,577.09

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Solution

The fourth proportional to 203,221.40, 280,441.85 and 112,577.09 is: 155,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,221.40 : 280,441.85 = 112,577.09 : x
  2. Step 2: Convert to fraction form
    203,221.40/280,441.85 = 112,577.09/x
  3. Step 3: Cross multiply
    203,221.40x = 280,441.85 × 112,577.09
  4. Step 4: Simplify right side
    203,221.40x = 31,571,327,387.22
  5. Step 5: Solve for x
    x = 31,571,327,387.22/203,221.40
  6. Step 6: Final answer
    x = 155,354.34

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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.