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Finding the Fourth Proportional to 400,582.81, 600,874.21 and 134,342.56

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Solution

The fourth proportional to 400,582.81, 600,874.21 and 134,342.56 is: 201,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,582.81 : 600,874.21 = 134,342.56 : x
  2. Step 2: Convert to fraction form
    400,582.81/600,874.21 = 134,342.56/x
  3. Step 3: Cross multiply
    400,582.81x = 600,874.21 × 134,342.56
  4. Step 4: Simplify right side
    400,582.81x = 80,722,979,609.38
  5. Step 5: Solve for x
    x = 80,722,979,609.38/400,582.81
  6. Step 6: Final answer
    x = 201,513.84

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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.