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Finding the Fourth Proportional to 400,323.62, 600,486.48 and 147,494.57

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Solution

The fourth proportional to 400,323.62, 600,486.48 and 147,494.57 is: 221,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,323.62 : 600,486.48 = 147,494.57 : x
  2. Step 2: Convert to fraction form
    400,323.62/600,486.48 = 147,494.57/x
  3. Step 3: Cross multiply
    400,323.62x = 600,486.48 × 147,494.57
  4. Step 4: Simplify right side
    400,323.62x = 88,568,492,155.98
  5. Step 5: Solve for x
    x = 88,568,492,155.98/400,323.62
  6. Step 6: Final answer
    x = 221,242.23

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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.