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Finding the Fourth Proportional to 225,683.73, 311,451.53 and 123,709.16

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Solution

The fourth proportional to 225,683.73, 311,451.53 and 123,709.16 is: 170,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,683.73 : 311,451.53 = 123,709.16 : x
  2. Step 2: Convert to fraction form
    225,683.73/311,451.53 = 123,709.16/x
  3. Step 3: Cross multiply
    225,683.73x = 311,451.53 × 123,709.16
  4. Step 4: Simplify right side
    225,683.73x = 38,529,408,658.29
  5. Step 5: Solve for x
    x = 38,529,408,658.29/225,683.73
  6. Step 6: Final answer
    x = 170,723.02

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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.