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Finding the Fourth Proportional to 265,080.60, 397,329.30 and 115,295.40

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Solution

The fourth proportional to 265,080.60, 397,329.30 and 115,295.40 is: 172,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,080.60 : 397,329.30 = 115,295.40 : x
  2. Step 2: Convert to fraction form
    265,080.60/397,329.30 = 115,295.40/x
  3. Step 3: Cross multiply
    265,080.60x = 397,329.30 × 115,295.40
  4. Step 4: Simplify right side
    265,080.60x = 45,810,240,575.22
  5. Step 5: Solve for x
    x = 45,810,240,575.22/265,080.60
  6. Step 6: Final answer
    x = 172,816.27

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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.