Home / 228,438.87-315,278.62-131,624.18

Finding the Fourth Proportional to 228,438.87, 315,278.62 and 131,624.18

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Solution

The fourth proportional to 228,438.87, 315,278.62 and 131,624.18 is: 181,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,438.87 : 315,278.62 = 131,624.18 : x
  2. Step 2: Convert to fraction form
    228,438.87/315,278.62 = 131,624.18/x
  3. Step 3: Cross multiply
    228,438.87x = 315,278.62 × 131,624.18
  4. Step 4: Simplify right side
    228,438.87x = 41,498,289,452.16
  5. Step 5: Solve for x
    x = 41,498,289,452.16/228,438.87
  6. Step 6: Final answer
    x = 181,660.37

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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.