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Finding the Fourth Proportional to 298,426.96, 411,698.40 and 196,321.04

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Solution

The fourth proportional to 298,426.96, 411,698.40 and 196,321.04 is: 270,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,426.96 : 411,698.40 = 196,321.04 : x
  2. Step 2: Convert to fraction form
    298,426.96/411,698.40 = 196,321.04/x
  3. Step 3: Cross multiply
    298,426.96x = 411,698.40 × 196,321.04
  4. Step 4: Simplify right side
    298,426.96x = 80,825,058,054.34
  5. Step 5: Solve for x
    x = 80,825,058,054.34/298,426.96
  6. Step 6: Final answer
    x = 270,836.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.