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Finding the Fourth Proportional to 208,118.00, 287,204.87 and 112,626.70

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Solution

The fourth proportional to 208,118.00, 287,204.87 and 112,626.70 is: 155,425.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,118.00 : 287,204.87 = 112,626.70 : x
  2. Step 2: Convert to fraction form
    208,118.00/287,204.87 = 112,626.70/x
  3. Step 3: Cross multiply
    208,118.00x = 287,204.87 × 112,626.70
  4. Step 4: Simplify right side
    208,118.00x = 32,346,936,295.58
  5. Step 5: Solve for x
    x = 32,346,936,295.58/208,118.00
  6. Step 6: Final answer
    x = 155,425.94

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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.