Home / 285,220.95-427,216.31-268,452.51

Finding the Fourth Proportional to 285,220.95, 427,216.31 and 268,452.51

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Solution

The fourth proportional to 285,220.95, 427,216.31 and 268,452.51 is: 402,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,220.95 : 427,216.31 = 268,452.51 : x
  2. Step 2: Convert to fraction form
    285,220.95/427,216.31 = 268,452.51/x
  3. Step 3: Cross multiply
    285,220.95x = 427,216.31 × 268,452.51
  4. Step 4: Simplify right side
    285,220.95x = 114,687,290,732.44
  5. Step 5: Solve for x
    x = 114,687,290,732.44/285,220.95
  6. Step 6: Final answer
    x = 402,099.81

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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.