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Finding the Fourth Proportional to 265,946.26, 398,832.66 and 88,405.60

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Solution

The fourth proportional to 265,946.26, 398,832.66 and 88,405.60 is: 132,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,946.26 : 398,832.66 = 88,405.60 : x
  2. Step 2: Convert to fraction form
    265,946.26/398,832.66 = 88,405.60/x
  3. Step 3: Cross multiply
    265,946.26x = 398,832.66 × 88,405.60
  4. Step 4: Simplify right side
    265,946.26x = 35,259,040,606.90
  5. Step 5: Solve for x
    x = 35,259,040,606.90/265,946.26
  6. Step 6: Final answer
    x = 132,579.57

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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.