Home / 312,475.43-431,213.94-169,232.19

Finding the Fourth Proportional to 312,475.43, 431,213.94 and 169,232.19

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Solution

The fourth proportional to 312,475.43, 431,213.94 and 169,232.19 is: 233,539.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,475.43 : 431,213.94 = 169,232.19 : x
  2. Step 2: Convert to fraction form
    312,475.43/431,213.94 = 169,232.19/x
  3. Step 3: Cross multiply
    312,475.43x = 431,213.94 × 169,232.19
  4. Step 4: Simplify right side
    312,475.43x = 72,975,279,424.73
  5. Step 5: Solve for x
    x = 72,975,279,424.73/312,475.43
  6. Step 6: Final answer
    x = 233,539.26

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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.