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Finding the Fourth Proportional to 245,551.49, 338,842.74 and 138,100.77

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Solution

The fourth proportional to 245,551.49, 338,842.74 and 138,100.77 is: 190,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,551.49 : 338,842.74 = 138,100.77 : x
  2. Step 2: Convert to fraction form
    245,551.49/338,842.74 = 138,100.77/x
  3. Step 3: Cross multiply
    245,551.49x = 338,842.74 × 138,100.77
  4. Step 4: Simplify right side
    245,551.49x = 46,794,441,953.95
  5. Step 5: Solve for x
    x = 46,794,441,953.95/245,551.49
  6. Step 6: Final answer
    x = 190,568.75

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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.