Home / 311,631.17-467,077.69-143,009.37

Finding the Fourth Proportional to 311,631.17, 467,077.69 and 143,009.37

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Solution

The fourth proportional to 311,631.17, 467,077.69 and 143,009.37 is: 214,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,631.17 : 467,077.69 = 143,009.37 : x
  2. Step 2: Convert to fraction form
    311,631.17/467,077.69 = 143,009.37/x
  3. Step 3: Cross multiply
    311,631.17x = 467,077.69 × 143,009.37
  4. Step 4: Simplify right side
    311,631.17x = 66,796,486,187.96
  5. Step 5: Solve for x
    x = 66,796,486,187.96/311,631.17
  6. Step 6: Final answer
    x = 214,344.69

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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.