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Finding the Fourth Proportional to 400,493.57, 600,391.44 and 163,685.21

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Solution

The fourth proportional to 400,493.57, 600,391.44 and 163,685.21 is: 245,385.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,493.57 : 600,391.44 = 163,685.21 : x
  2. Step 2: Convert to fraction form
    400,493.57/600,391.44 = 163,685.21/x
  3. Step 3: Cross multiply
    400,493.57x = 600,391.44 × 163,685.21
  4. Step 4: Simplify right side
    400,493.57x = 98,275,195,936.65
  5. Step 5: Solve for x
    x = 98,275,195,936.65/400,493.57
  6. Step 6: Final answer
    x = 245,385.21

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1.5x scale

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.