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Finding the Fourth Proportional to 423,662.04, 635,185.35 and 198,906.84

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Solution

The fourth proportional to 423,662.04, 635,185.35 and 198,906.84 is: 298,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,662.04 : 635,185.35 = 198,906.84 : x
  2. Step 2: Convert to fraction form
    423,662.04/635,185.35 = 198,906.84/x
  3. Step 3: Cross multiply
    423,662.04x = 635,185.35 × 198,906.84
  4. Step 4: Simplify right side
    423,662.04x = 126,342,710,782.79
  5. Step 5: Solve for x
    x = 126,342,710,782.79/423,662.04
  6. Step 6: Final answer
    x = 298,215.79

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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.