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Finding the Fourth Proportional to 199,498.88, 298,998.48 and 99,687.08

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Solution

The fourth proportional to 199,498.88, 298,998.48 and 99,687.08 is: 149,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,498.88 : 298,998.48 = 99,687.08 : x
  2. Step 2: Convert to fraction form
    199,498.88/298,998.48 = 99,687.08/x
  3. Step 3: Cross multiply
    199,498.88x = 298,998.48 × 99,687.08
  4. Step 4: Simplify right side
    199,498.88x = 29,806,285,395.64
  5. Step 5: Solve for x
    x = 29,806,285,395.64/199,498.88
  6. Step 6: Final answer
    x = 149,405.78

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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.