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Finding the Fourth Proportional to 203,321.56, 280,603.29 and 112,697.14

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Solution

The fourth proportional to 203,321.56, 280,603.29 and 112,697.14 is: 155,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,321.56 : 280,603.29 = 112,697.14 : x
  2. Step 2: Convert to fraction form
    203,321.56/280,603.29 = 112,697.14/x
  3. Step 3: Cross multiply
    203,321.56x = 280,603.29 × 112,697.14
  4. Step 4: Simplify right side
    203,321.56x = 31,623,188,257.59
  5. Step 5: Solve for x
    x = 31,623,188,257.59/203,321.56
  6. Step 6: Final answer
    x = 155,532.88

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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.