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Finding the Fourth Proportional to 203,432.88, 280,753.92 and 112,797.84

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Solution

The fourth proportional to 203,432.88, 280,753.92 and 112,797.84 is: 155,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,432.88 : 280,753.92 = 112,797.84 : x
  2. Step 2: Convert to fraction form
    203,432.88/280,753.92 = 112,797.84/x
  3. Step 3: Cross multiply
    203,432.88x = 280,753.92 × 112,797.84
  4. Step 4: Simplify right side
    203,432.88x = 31,668,435,747.53
  5. Step 5: Solve for x
    x = 31,668,435,747.53/203,432.88
  6. Step 6: Final answer
    x = 155,670.19

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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.