Home / 268,771.31-403,148.03-79,234.82

Finding the Fourth Proportional to 268,771.31, 403,148.03 and 79,234.82

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Solution

The fourth proportional to 268,771.31, 403,148.03 and 79,234.82 is: 118,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,771.31 : 403,148.03 = 79,234.82 : x
  2. Step 2: Convert to fraction form
    268,771.31/403,148.03 = 79,234.82/x
  3. Step 3: Cross multiply
    268,771.31x = 403,148.03 × 79,234.82
  4. Step 4: Simplify right side
    268,771.31x = 31,943,362,202.10
  5. Step 5: Solve for x
    x = 31,943,362,202.10/268,771.31
  6. Step 6: Final answer
    x = 118,849.60

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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.