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Finding the Fourth Proportional to 248,396.63, 342,787.41 and 135,219.38

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Solution

The fourth proportional to 248,396.63, 342,787.41 and 135,219.38 is: 186,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,396.63 : 342,787.41 = 135,219.38 : x
  2. Step 2: Convert to fraction form
    248,396.63/342,787.41 = 135,219.38/x
  3. Step 3: Cross multiply
    248,396.63x = 342,787.41 × 135,219.38
  4. Step 4: Simplify right side
    248,396.63x = 46,351,499,338.07
  5. Step 5: Solve for x
    x = 46,351,499,338.07/248,396.63
  6. Step 6: Final answer
    x = 186,602.77

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1.5x scale

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.