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Finding the Fourth Proportional to 199,302.18, 298,995.88 and 72,941.88

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Solution

The fourth proportional to 199,302.18, 298,995.88 and 72,941.88 is: 109,428.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,302.18 : 298,995.88 = 72,941.88 : x
  2. Step 2: Convert to fraction form
    199,302.18/298,995.88 = 72,941.88/x
  3. Step 3: Cross multiply
    199,302.18x = 298,995.88 × 72,941.88
  4. Step 4: Simplify right side
    199,302.18x = 21,809,321,599.45
  5. Step 5: Solve for x
    x = 21,809,321,599.45/199,302.18
  6. Step 6: Final answer
    x = 109,428.41

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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.