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Finding the Fourth Proportional to 199,602.40, 298,966.20 and 105,998.80

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Solution

The fourth proportional to 199,602.40, 298,966.20 and 105,998.80 is: 158,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,602.40 : 298,966.20 = 105,998.80 : x
  2. Step 2: Convert to fraction form
    199,602.40/298,966.20 = 105,998.80/x
  3. Step 3: Cross multiply
    199,602.40x = 298,966.20 × 105,998.80
  4. Step 4: Simplify right side
    199,602.40x = 31,690,058,440.56
  5. Step 5: Solve for x
    x = 31,690,058,440.56/199,602.40
  6. Step 6: Final answer
    x = 158,765.92

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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.