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Finding the Fourth Proportional to 281,522.44, 388,500.42 and 154,200.52

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Solution

The fourth proportional to 281,522.44, 388,500.42 and 154,200.52 is: 212,796.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,522.44 : 388,500.42 = 154,200.52 : x
  2. Step 2: Convert to fraction form
    281,522.44/388,500.42 = 154,200.52/x
  3. Step 3: Cross multiply
    281,522.44x = 388,500.42 × 154,200.52
  4. Step 4: Simplify right side
    281,522.44x = 59,906,966,784.22
  5. Step 5: Solve for x
    x = 59,906,966,784.22/281,522.44
  6. Step 6: Final answer
    x = 212,796.42

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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.