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Finding the Fourth Proportional to 171,080.40, 256,620.60 and 164,519.40

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Solution

The fourth proportional to 171,080.40, 256,620.60 and 164,519.40 is: 246,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,080.40 : 256,620.60 = 164,519.40 : x
  2. Step 2: Convert to fraction form
    171,080.40/256,620.60 = 164,519.40/x
  3. Step 3: Cross multiply
    171,080.40x = 256,620.60 × 164,519.40
  4. Step 4: Simplify right side
    171,080.40x = 42,219,067,139.64
  5. Step 5: Solve for x
    x = 42,219,067,139.64/171,080.40
  6. Step 6: Final answer
    x = 246,779.10

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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.