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Finding the Fourth Proportional to 400,581.81, 600,872.71 and 134,341.56

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Solution

The fourth proportional to 400,581.81, 600,872.71 and 134,341.56 is: 201,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,581.81 : 600,872.71 = 134,341.56 : x
  2. Step 2: Convert to fraction form
    400,581.81/600,872.71 = 134,341.56/x
  3. Step 3: Cross multiply
    400,581.81x = 600,872.71 × 134,341.56
  4. Step 4: Simplify right side
    400,581.81x = 80,722,177,222.83
  5. Step 5: Solve for x
    x = 80,722,177,222.83/400,581.81
  6. Step 6: Final answer
    x = 201,512.34

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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.