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Finding the Fourth Proportional to 199,504.34, 299,366.68 and 81,258.92

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Solution

The fourth proportional to 199,504.34, 299,366.68 and 81,258.92 is: 121,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,504.34 : 299,366.68 = 81,258.92 : x
  2. Step 2: Convert to fraction form
    199,504.34/299,366.68 = 81,258.92/x
  3. Step 3: Cross multiply
    199,504.34x = 299,366.68 × 81,258.92
  4. Step 4: Simplify right side
    199,504.34x = 24,326,213,100.79
  5. Step 5: Solve for x
    x = 24,326,213,100.79/199,504.34
  6. Step 6: Final answer
    x = 121,933.25

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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.