Home / 505,420.23-757,876.77-168,342.33

Finding the Fourth Proportional to 505,420.23, 757,876.77 and 168,342.33

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Solution

The fourth proportional to 505,420.23, 757,876.77 and 168,342.33 is: 252,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,420.23 : 757,876.77 = 168,342.33 : x
  2. Step 2: Convert to fraction form
    505,420.23/757,876.77 = 168,342.33/x
  3. Step 3: Cross multiply
    505,420.23x = 757,876.77 × 168,342.33
  4. Step 4: Simplify right side
    505,420.23x = 127,582,741,314.67
  5. Step 5: Solve for x
    x = 127,582,741,314.67/505,420.23
  6. Step 6: Final answer
    x = 252,429.04

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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.