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Finding the Fourth Proportional to 193,344.08, 289,903.71 and 129,375.32

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Solution

The fourth proportional to 193,344.08, 289,903.71 and 129,375.32 is: 193,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,344.08 : 289,903.71 = 129,375.32 : x
  2. Step 2: Convert to fraction form
    193,344.08/289,903.71 = 129,375.32/x
  3. Step 3: Cross multiply
    193,344.08x = 289,903.71 × 129,375.32
  4. Step 4: Simplify right side
    193,344.08x = 37,506,383,558.34
  5. Step 5: Solve for x
    x = 37,506,383,558.34/193,344.08
  6. Step 6: Final answer
    x = 193,987.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.