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Finding the Fourth Proportional to 170,558.64, 255,924.36 and 115,038

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Solution

The fourth proportional to 170,558.64, 255,924.36 and 115,038 is: 172,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,558.64 : 255,924.36 = 115,038 : x
  2. Step 2: Convert to fraction form
    170,558.64/255,924.36 = 115,038/x
  3. Step 3: Cross multiply
    170,558.64x = 255,924.36 × 115,038
  4. Step 4: Simplify right side
    170,558.64x = 29,441,026,525.68
  5. Step 5: Solve for x
    x = 29,441,026,525.68/170,558.64
  6. Step 6: Final answer
    x = 172,615.27

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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.