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Finding the Fourth Proportional to 313,268.93, 432,311.49 and 170,029

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Solution

The fourth proportional to 313,268.93, 432,311.49 and 170,029 is: 234,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,268.93 : 432,311.49 = 170,029 : x
  2. Step 2: Convert to fraction form
    313,268.93/432,311.49 = 170,029/x
  3. Step 3: Cross multiply
    313,268.93x = 432,311.49 × 170,029
  4. Step 4: Simplify right side
    313,268.93x = 73,505,490,333.21
  5. Step 5: Solve for x
    x = 73,505,490,333.21/313,268.93
  6. Step 6: Final answer
    x = 234,640.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.