Home / 321,631.22-481,837.86-214,692.72

Finding the Fourth Proportional to 321,631.22, 481,837.86 and 214,692.72

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Solution

The fourth proportional to 321,631.22, 481,837.86 and 214,692.72 is: 321,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,631.22 : 481,837.86 = 214,692.72 : x
  2. Step 2: Convert to fraction form
    321,631.22/481,837.86 = 214,692.72/x
  3. Step 3: Cross multiply
    321,631.22x = 481,837.86 × 214,692.72
  4. Step 4: Simplify right side
    321,631.22x = 103,447,080,762.38
  5. Step 5: Solve for x
    x = 103,447,080,762.38/321,631.22
  6. Step 6: Final answer
    x = 321,632.59

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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.