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Finding the Fourth Proportional to 281,759.64, 388,793.70 and 178,353.42

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Solution

The fourth proportional to 281,759.64, 388,793.70 and 178,353.42 is: 246,105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,759.64 : 388,793.70 = 178,353.42 : x
  2. Step 2: Convert to fraction form
    281,759.64/388,793.70 = 178,353.42/x
  3. Step 3: Cross multiply
    281,759.64x = 388,793.70 × 178,353.42
  4. Step 4: Simplify right side
    281,759.64x = 69,342,686,069.45
  5. Step 5: Solve for x
    x = 69,342,686,069.45/281,759.64
  6. Step 6: Final answer
    x = 246,105.82

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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.