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Finding the Fourth Proportional to 341,820.72, 512,739.36 and 105,165.36

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Solution

The fourth proportional to 341,820.72, 512,739.36 and 105,165.36 is: 157,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,820.72 : 512,739.36 = 105,165.36 : x
  2. Step 2: Convert to fraction form
    341,820.72/512,739.36 = 105,165.36/x
  3. Step 3: Cross multiply
    341,820.72x = 512,739.36 × 105,165.36
  4. Step 4: Simplify right side
    341,820.72x = 53,922,419,380.57
  5. Step 5: Solve for x
    x = 53,922,419,380.57/341,820.72
  6. Step 6: Final answer
    x = 157,750.59

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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.