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Finding the Fourth Proportional to 259,560.60, 388,563.30 and 154,325.40

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Solution

The fourth proportional to 259,560.60, 388,563.30 and 154,325.40 is: 231,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,560.60 : 388,563.30 = 154,325.40 : x
  2. Step 2: Convert to fraction form
    259,560.60/388,563.30 = 154,325.40/x
  3. Step 3: Cross multiply
    259,560.60x = 388,563.30 × 154,325.40
  4. Step 4: Simplify right side
    259,560.60x = 59,965,186,697.82
  5. Step 5: Solve for x
    x = 59,965,186,697.82/259,560.60
  6. Step 6: Final answer
    x = 231,025.77

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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.