Home / 312,551.20-431,322.72-169,311.24

Finding the Fourth Proportional to 312,551.20, 431,322.72 and 169,311.24

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Solution

The fourth proportional to 312,551.20, 431,322.72 and 169,311.24 is: 233,650.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,551.20 : 431,322.72 = 169,311.24 : x
  2. Step 2: Convert to fraction form
    312,551.20/431,322.72 = 169,311.24/x
  3. Step 3: Cross multiply
    312,551.20x = 431,322.72 × 169,311.24
  4. Step 4: Simplify right side
    312,551.20x = 73,027,784,563.37
  5. Step 5: Solve for x
    x = 73,027,784,563.37/312,551.20
  6. Step 6: Final answer
    x = 233,650.63

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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.