Home / 208,396.22-287,588.16-112,902.91

Finding the Fourth Proportional to 208,396.22, 287,588.16 and 112,902.91

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Solution

The fourth proportional to 208,396.22, 287,588.16 and 112,902.91 is: 155,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,396.22 : 287,588.16 = 112,902.91 : x
  2. Step 2: Convert to fraction form
    208,396.22/287,588.16 = 112,902.91/x
  3. Step 3: Cross multiply
    208,396.22x = 287,588.16 × 112,902.91
  4. Step 4: Simplify right side
    208,396.22x = 32,469,540,145.55
  5. Step 5: Solve for x
    x = 32,469,540,145.55/208,396.22
  6. Step 6: Final answer
    x = 155,806.76

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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.