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Finding the Fourth Proportional to 188,262.18, 259,798.52 and 103,378.64

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Solution

The fourth proportional to 188,262.18, 259,798.52 and 103,378.64 is: 142,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,262.18 : 259,798.52 = 103,378.64 : x
  2. Step 2: Convert to fraction form
    188,262.18/259,798.52 = 103,378.64/x
  3. Step 3: Cross multiply
    188,262.18x = 259,798.52 × 103,378.64
  4. Step 4: Simplify right side
    188,262.18x = 26,857,615,855.73
  5. Step 5: Solve for x
    x = 26,857,615,855.73/188,262.18
  6. Step 6: Final answer
    x = 142,660.71

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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.