Home / 312,822.45-431,697.20-169,584.75

Finding the Fourth Proportional to 312,822.45, 431,697.20 and 169,584.75

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Solution

The fourth proportional to 312,822.45, 431,697.20 and 169,584.75 is: 234,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,822.45 : 431,697.20 = 169,584.75 : x
  2. Step 2: Convert to fraction form
    312,822.45/431,697.20 = 169,584.75/x
  3. Step 3: Cross multiply
    312,822.45x = 431,697.20 × 169,584.75
  4. Step 4: Simplify right side
    312,822.45x = 73,209,260,889.78
  5. Step 5: Solve for x
    x = 73,209,260,889.78/312,822.45
  6. Step 6: Final answer
    x = 234,028.16

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1.5x scale

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.