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Finding the Fourth Proportional to 188,797.30, 260,538.27 and 103,912.54

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Solution

The fourth proportional to 188,797.30, 260,538.27 and 103,912.54 is: 143,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,797.30 : 260,538.27 = 103,912.54 : x
  2. Step 2: Convert to fraction form
    188,797.30/260,538.27 = 103,912.54/x
  3. Step 3: Cross multiply
    188,797.30x = 260,538.27 × 103,912.54
  4. Step 4: Simplify right side
    188,797.30x = 27,073,193,402.91
  5. Step 5: Solve for x
    x = 27,073,193,402.91/188,797.30
  6. Step 6: Final answer
    x = 143,398.20

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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.