Home / 454,433.80-681,644.30-205,115.40

Finding the Fourth Proportional to 454,433.80, 681,644.30 and 205,115.40

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Solution

The fourth proportional to 454,433.80, 681,644.30 and 205,115.40 is: 307,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,433.80 : 681,644.30 = 205,115.40 : x
  2. Step 2: Convert to fraction form
    454,433.80/681,644.30 = 205,115.40/x
  3. Step 3: Cross multiply
    454,433.80x = 681,644.30 × 205,115.40
  4. Step 4: Simplify right side
    454,433.80x = 139,815,743,252.22
  5. Step 5: Solve for x
    x = 139,815,743,252.22/454,433.80
  6. Step 6: Final answer
    x = 307,670.21

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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.