Home / 203,160.48-280,353.72-111,278.30

Finding the Fourth Proportional to 203,160.48, 280,353.72 and 111,278.30

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Solution

The fourth proportional to 203,160.48, 280,353.72 and 111,278.30 is: 153,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,160.48 : 280,353.72 = 111,278.30 : x
  2. Step 2: Convert to fraction form
    203,160.48/280,353.72 = 111,278.30/x
  3. Step 3: Cross multiply
    203,160.48x = 280,353.72 × 111,278.30
  4. Step 4: Simplify right side
    203,160.48x = 31,197,285,360.28
  5. Step 5: Solve for x
    x = 31,197,285,360.28/203,160.48
  6. Step 6: Final answer
    x = 153,559.81

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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.