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Finding the Fourth Proportional to 227,816.60, 342,005.70 and 143,576.60

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Solution

The fourth proportional to 227,816.60, 342,005.70 and 143,576.60 is: 215,541.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,816.60 : 342,005.70 = 143,576.60 : x
  2. Step 2: Convert to fraction form
    227,816.60/342,005.70 = 143,576.60/x
  3. Step 3: Cross multiply
    227,816.60x = 342,005.70 × 143,576.60
  4. Step 4: Simplify right side
    227,816.60x = 49,104,015,586.62
  5. Step 5: Solve for x
    x = 49,104,015,586.62/227,816.60
  6. Step 6: Final answer
    x = 215,541.87

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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.