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Finding the Fourth Proportional to 400,327.80, 600,492.09 and 163,670.48

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Solution

The fourth proportional to 400,327.80, 600,492.09 and 163,670.48 is: 245,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,327.80 : 600,492.09 = 163,670.48 : x
  2. Step 2: Convert to fraction form
    400,327.80/600,492.09 = 163,670.48/x
  3. Step 3: Cross multiply
    400,327.80x = 600,492.09 × 163,670.48
  4. Step 4: Simplify right side
    400,327.80x = 98,282,825,604.04
  5. Step 5: Solve for x
    x = 98,282,825,604.04/400,327.80
  6. Step 6: Final answer
    x = 245,505.87

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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.