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Finding the Fourth Proportional to 398,255.12, 597,382.72 and 117,750.72

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Solution

The fourth proportional to 398,255.12, 597,382.72 and 117,750.72 is: 176,626.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,255.12 : 597,382.72 = 117,750.72 : x
  2. Step 2: Convert to fraction form
    398,255.12/597,382.72 = 117,750.72/x
  3. Step 3: Cross multiply
    398,255.12x = 597,382.72 × 117,750.72
  4. Step 4: Simplify right side
    398,255.12x = 70,342,245,395.56
  5. Step 5: Solve for x
    x = 70,342,245,395.56/398,255.12
  6. Step 6: Final answer
    x = 176,626.09

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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.