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Finding the Fourth Proportional to 654,472.70, 981,730.50 and 181,118.42

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Solution

The fourth proportional to 654,472.70, 981,730.50 and 181,118.42 is: 271,683.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,472.70 : 981,730.50 = 181,118.42 : x
  2. Step 2: Convert to fraction form
    654,472.70/981,730.50 = 181,118.42/x
  3. Step 3: Cross multiply
    654,472.70x = 981,730.50 × 181,118.42
  4. Step 4: Simplify right side
    654,472.70x = 177,809,477,025.81
  5. Step 5: Solve for x
    x = 177,809,477,025.81/654,472.70
  6. Step 6: Final answer
    x = 271,683.57

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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.