Home / 345,557.36-518,300.99-92,805

Finding the Fourth Proportional to 345,557.36, 518,300.99 and 92,805

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Solution

The fourth proportional to 345,557.36, 518,300.99 and 92,805 is: 139,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,557.36 : 518,300.99 = 92,805 : x
  2. Step 2: Convert to fraction form
    345,557.36/518,300.99 = 92,805/x
  3. Step 3: Cross multiply
    345,557.36x = 518,300.99 × 92,805
  4. Step 4: Simplify right side
    345,557.36x = 48,100,923,376.95
  5. Step 5: Solve for x
    x = 48,100,923,376.95/345,557.36
  6. Step 6: Final answer
    x = 139,198.09

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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.