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Finding the Fourth Proportional to 208,375.43, 287,559.41 and 112,882.05

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Solution

The fourth proportional to 208,375.43, 287,559.41 and 112,882.05 is: 155,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,375.43 : 287,559.41 = 112,882.05 : x
  2. Step 2: Convert to fraction form
    208,375.43/287,559.41 = 112,882.05/x
  3. Step 3: Cross multiply
    208,375.43x = 287,559.41 × 112,882.05
  4. Step 4: Simplify right side
    208,375.43x = 32,460,295,133.18
  5. Step 5: Solve for x
    x = 32,460,295,133.18/208,375.43
  6. Step 6: Final answer
    x = 155,777.94

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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.