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Finding the Fourth Proportional to 203,143.84, 280,245.44 and 131,546.93

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Solution

The fourth proportional to 203,143.84, 280,245.44 and 131,546.93 is: 181,474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,143.84 : 280,245.44 = 131,546.93 : x
  2. Step 2: Convert to fraction form
    203,143.84/280,245.44 = 131,546.93/x
  3. Step 3: Cross multiply
    203,143.84x = 280,245.44 × 131,546.93
  4. Step 4: Simplify right side
    203,143.84x = 36,865,426,206.14
  5. Step 5: Solve for x
    x = 36,865,426,206.14/203,143.84
  6. Step 6: Final answer
    x = 181,474.50

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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.