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Finding the Fourth Proportional to 188,440.68, 260,046.48 and 103,559.16

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Solution

The fourth proportional to 188,440.68, 260,046.48 and 103,559.16 is: 142,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,440.68 : 260,046.48 = 103,559.16 : x
  2. Step 2: Convert to fraction form
    188,440.68/260,046.48 = 103,559.16/x
  3. Step 3: Cross multiply
    188,440.68x = 260,046.48 × 103,559.16
  4. Step 4: Simplify right side
    188,440.68x = 26,930,195,029.76
  5. Step 5: Solve for x
    x = 26,930,195,029.76/188,440.68
  6. Step 6: Final answer
    x = 142,910.73

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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.