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Finding the Fourth Proportional to 303,879.26, 419,357.81 and 167,916.35

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Solution

The fourth proportional to 303,879.26, 419,357.81 and 167,916.35 is: 231,727.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,879.26 : 419,357.81 = 167,916.35 : x
  2. Step 2: Convert to fraction form
    303,879.26/419,357.81 = 167,916.35/x
  3. Step 3: Cross multiply
    303,879.26x = 419,357.81 × 167,916.35
  4. Step 4: Simplify right side
    303,879.26x = 70,417,032,799.19
  5. Step 5: Solve for x
    x = 70,417,032,799.19/303,879.26
  6. Step 6: Final answer
    x = 231,727.01

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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.