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Finding the Fourth Proportional to 311,944.80, 430,482.42 and 168,704.94

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Solution

The fourth proportional to 311,944.80, 430,482.42 and 168,704.94 is: 232,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,944.80 : 430,482.42 = 168,704.94 : x
  2. Step 2: Convert to fraction form
    311,944.80/430,482.42 = 168,704.94/x
  3. Step 3: Cross multiply
    311,944.80x = 430,482.42 × 168,704.94
  4. Step 4: Simplify right side
    311,944.80x = 72,624,510,837.15
  5. Step 5: Solve for x
    x = 72,624,510,837.15/311,944.80
  6. Step 6: Final answer
    x = 232,812.06

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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.