Home / 312,450.24-431,179-169,206.96

Finding the Fourth Proportional to 312,450.24, 431,179 and 169,206.96

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Solution

The fourth proportional to 312,450.24, 431,179 and 169,206.96 is: 233,504.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,450.24 : 431,179 = 169,206.96 : x
  2. Step 2: Convert to fraction form
    312,450.24/431,179 = 169,206.96/x
  3. Step 3: Cross multiply
    312,450.24x = 431,179 × 169,206.96
  4. Step 4: Simplify right side
    312,450.24x = 72,958,487,805.84
  5. Step 5: Solve for x
    x = 72,958,487,805.84/312,450.24
  6. Step 6: Final answer
    x = 233,504.34

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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.