Home / 311,639.37-467,089.92-143,017.56

Finding the Fourth Proportional to 311,639.37, 467,089.92 and 143,017.56

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Solution

The fourth proportional to 311,639.37, 467,089.92 and 143,017.56 is: 214,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,639.37 : 467,089.92 = 143,017.56 : x
  2. Step 2: Convert to fraction form
    311,639.37/467,089.92 = 143,017.56/x
  3. Step 3: Cross multiply
    311,639.37x = 467,089.92 × 143,017.56
  4. Step 4: Simplify right side
    311,639.37x = 66,802,060,659.00
  5. Step 5: Solve for x
    x = 66,802,060,659.00/311,639.37
  6. Step 6: Final answer
    x = 214,356.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.