Home / 315,825.93-435,837.24-172,583.37

Finding the Fourth Proportional to 315,825.93, 435,837.24 and 172,583.37

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Solution

The fourth proportional to 315,825.93, 435,837.24 and 172,583.37 is: 238,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,825.93 : 435,837.24 = 172,583.37 : x
  2. Step 2: Convert to fraction form
    315,825.93/435,837.24 = 172,583.37/x
  3. Step 3: Cross multiply
    315,825.93x = 435,837.24 × 172,583.37
  4. Step 4: Simplify right side
    315,825.93x = 75,218,259,650.70
  5. Step 5: Solve for x
    x = 75,218,259,650.70/315,825.93
  6. Step 6: Final answer
    x = 238,163.66

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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.