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Finding the Fourth Proportional to 315,414.44, 435,428.06 and 194,622.28

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Solution

The fourth proportional to 315,414.44, 435,428.06 and 194,622.28 is: 268,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,414.44 : 435,428.06 = 194,622.28 : x
  2. Step 2: Convert to fraction form
    315,414.44/435,428.06 = 194,622.28/x
  3. Step 3: Cross multiply
    315,414.44x = 435,428.06 × 194,622.28
  4. Step 4: Simplify right side
    315,414.44x = 84,743,999,751.50
  5. Step 5: Solve for x
    x = 84,743,999,751.50/315,414.44
  6. Step 6: Final answer
    x = 268,675.08

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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.