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Finding the Fourth Proportional to 199,673.66, 299,427.30 and 81,264.62

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Solution

The fourth proportional to 199,673.66, 299,427.30 and 81,264.62 is: 121,863.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,673.66 : 299,427.30 = 81,264.62 : x
  2. Step 2: Convert to fraction form
    199,673.66/299,427.30 = 81,264.62/x
  3. Step 3: Cross multiply
    199,673.66x = 299,427.30 × 81,264.62
  4. Step 4: Simplify right side
    199,673.66x = 24,332,845,752.13
  5. Step 5: Solve for x
    x = 24,332,845,752.13/199,673.66
  6. Step 6: Final answer
    x = 121,863.07

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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.