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Finding the Fourth Proportional to 245,808.84, 339,222.77 and 138,382.95

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Solution

The fourth proportional to 245,808.84, 339,222.77 and 138,382.95 is: 190,972.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,808.84 : 339,222.77 = 138,382.95 : x
  2. Step 2: Convert to fraction form
    245,808.84/339,222.77 = 138,382.95/x
  3. Step 3: Cross multiply
    245,808.84x = 339,222.77 × 138,382.95
  4. Step 4: Simplify right side
    245,808.84x = 46,942,647,619.77
  5. Step 5: Solve for x
    x = 46,942,647,619.77/245,808.84
  6. Step 6: Final answer
    x = 190,972.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.