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Finding the Fourth Proportional to 208,450.46, 287,661.88 and 112,956.32

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Solution

The fourth proportional to 208,450.46, 287,661.88 and 112,956.32 is: 155,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,450.46 : 287,661.88 = 112,956.32 : x
  2. Step 2: Convert to fraction form
    208,450.46/287,661.88 = 112,956.32/x
  3. Step 3: Cross multiply
    208,450.46x = 287,661.88 × 112,956.32
  4. Step 4: Simplify right side
    208,450.46x = 32,493,228,229.43
  5. Step 5: Solve for x
    x = 32,493,228,229.43/208,450.46
  6. Step 6: Final answer
    x = 155,879.86

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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.