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Finding the Fourth Proportional to 290,440.44, 435,687.54 and 112,960.92

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Solution

The fourth proportional to 290,440.44, 435,687.54 and 112,960.92 is: 169,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,440.44 : 435,687.54 = 112,960.92 : x
  2. Step 2: Convert to fraction form
    290,440.44/435,687.54 = 112,960.92/x
  3. Step 3: Cross multiply
    290,440.44x = 435,687.54 × 112,960.92
  4. Step 4: Simplify right side
    290,440.44x = 49,215,665,350.94
  5. Step 5: Solve for x
    x = 49,215,665,350.94/290,440.44
  6. Step 6: Final answer
    x = 169,451.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.