Home / 312,423.42-431,144.55-169,183.62

Finding the Fourth Proportional to 312,423.42, 431,144.55 and 169,183.62

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Solution

The fourth proportional to 312,423.42, 431,144.55 and 169,183.62 is: 233,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,423.42 : 431,144.55 = 169,183.62 : x
  2. Step 2: Convert to fraction form
    312,423.42/431,144.55 = 169,183.62/x
  3. Step 3: Cross multiply
    312,423.42x = 431,144.55 × 169,183.62
  4. Step 4: Simplify right side
    312,423.42x = 72,942,595,712.27
  5. Step 5: Solve for x
    x = 72,942,595,712.27/312,423.42
  6. Step 6: Final answer
    x = 233,473.52

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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.