Home / 203,204.12-280,409.33-112,554.79

Finding the Fourth Proportional to 203,204.12, 280,409.33 and 112,554.79

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Solution

The fourth proportional to 203,204.12, 280,409.33 and 112,554.79 is: 155,318.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,204.12 : 280,409.33 = 112,554.79 : x
  2. Step 2: Convert to fraction form
    203,204.12/280,409.33 = 112,554.79/x
  3. Step 3: Cross multiply
    203,204.12x = 280,409.33 × 112,554.79
  4. Step 4: Simplify right side
    203,204.12x = 31,561,412,832.55
  5. Step 5: Solve for x
    x = 31,561,412,832.55/203,204.12
  6. Step 6: Final answer
    x = 155,318.77

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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.