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Finding the Fourth Proportional to 203,336.87, 280,604.88 and 112,706.45

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Solution

The fourth proportional to 203,336.87, 280,604.88 and 112,706.45 is: 155,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,336.87 : 280,604.88 = 112,706.45 : x
  2. Step 2: Convert to fraction form
    203,336.87/280,604.88 = 112,706.45/x
  3. Step 3: Cross multiply
    203,336.87x = 280,604.88 × 112,706.45
  4. Step 4: Simplify right side
    203,336.87x = 31,625,980,578.99
  5. Step 5: Solve for x
    x = 31,625,980,578.99/203,336.87
  6. Step 6: Final answer
    x = 155,534.90

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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.