Home / 308,559.40-462,748.38-131,065

Finding the Fourth Proportional to 308,559.40, 462,748.38 and 131,065

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Solution

The fourth proportional to 308,559.40, 462,748.38 and 131,065 is: 196,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,559.40 : 462,748.38 = 131,065 : x
  2. Step 2: Convert to fraction form
    308,559.40/462,748.38 = 131,065/x
  3. Step 3: Cross multiply
    308,559.40x = 462,748.38 × 131,065
  4. Step 4: Simplify right side
    308,559.40x = 60,650,116,424.70
  5. Step 5: Solve for x
    x = 60,650,116,424.70/308,559.40
  6. Step 6: Final answer
    x = 196,558.97

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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.