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Finding the Fourth Proportional to 265,928.38, 398,967.63 and 108,269.98

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Solution

The fourth proportional to 265,928.38, 398,967.63 and 108,269.98 is: 162,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,928.38 : 398,967.63 = 108,269.98 : x
  2. Step 2: Convert to fraction form
    265,928.38/398,967.63 = 108,269.98/x
  3. Step 3: Cross multiply
    265,928.38x = 398,967.63 × 108,269.98
  4. Step 4: Simplify right side
    265,928.38x = 43,196,217,320.75
  5. Step 5: Solve for x
    x = 43,196,217,320.75/265,928.38
  6. Step 6: Final answer
    x = 162,435.53

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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.