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Finding the Fourth Proportional to 259,331.60, 388,997.40 and 154,096.40

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Solution

The fourth proportional to 259,331.60, 388,997.40 and 154,096.40 is: 231,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,331.60 : 388,997.40 = 154,096.40 : x
  2. Step 2: Convert to fraction form
    259,331.60/388,997.40 = 154,096.40/x
  3. Step 3: Cross multiply
    259,331.60x = 388,997.40 × 154,096.40
  4. Step 4: Simplify right side
    259,331.60x = 59,943,098,949.36
  5. Step 5: Solve for x
    x = 59,943,098,949.36/259,331.60
  6. Step 6: Final answer
    x = 231,144.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.