Home / 268,986.70-403,533.21-79,450.36

Finding the Fourth Proportional to 268,986.70, 403,533.21 and 79,450.36

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Solution

The fourth proportional to 268,986.70, 403,533.21 and 79,450.36 is: 119,191.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,986.70 : 403,533.21 = 79,450.36 : x
  2. Step 2: Convert to fraction form
    268,986.70/403,533.21 = 79,450.36/x
  3. Step 3: Cross multiply
    268,986.70x = 403,533.21 × 79,450.36
  4. Step 4: Simplify right side
    268,986.70x = 32,060,858,806.46
  5. Step 5: Solve for x
    x = 32,060,858,806.46/268,986.70
  6. Step 6: Final answer
    x = 119,191.24

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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.