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Finding the Fourth Proportional to 203,461.35, 280,790.73 and 112,825.68

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Solution

The fourth proportional to 203,461.35, 280,790.73 and 112,825.68 is: 155,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,461.35 : 280,790.73 = 112,825.68 : x
  2. Step 2: Convert to fraction form
    203,461.35/280,790.73 = 112,825.68/x
  3. Step 3: Cross multiply
    203,461.35x = 280,790.73 × 112,825.68
  4. Step 4: Simplify right side
    203,461.35x = 31,680,405,049.95
  5. Step 5: Solve for x
    x = 31,680,405,049.95/203,461.35
  6. Step 6: Final answer
    x = 155,707.24

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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.