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Finding the Fourth Proportional to 199,415.84, 275,194 and 114,538.40

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Solution

The fourth proportional to 199,415.84, 275,194 and 114,538.40 is: 158,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,415.84 : 275,194 = 114,538.40 : x
  2. Step 2: Convert to fraction form
    199,415.84/275,194 = 114,538.40/x
  3. Step 3: Cross multiply
    199,415.84x = 275,194 × 114,538.40
  4. Step 4: Simplify right side
    199,415.84x = 31,520,280,449.60
  5. Step 5: Solve for x
    x = 31,520,280,449.60/199,415.84
  6. Step 6: Final answer
    x = 158,063.07

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Why These Related Problems?

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