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Finding the Fourth Proportional to 196,989.98, 295,514.12 and 72,321.26

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Solution

The fourth proportional to 196,989.98, 295,514.12 and 72,321.26 is: 108,492.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,989.98 : 295,514.12 = 72,321.26 : x
  2. Step 2: Convert to fraction form
    196,989.98/295,514.12 = 72,321.26/x
  3. Step 3: Cross multiply
    196,989.98x = 295,514.12 × 72,321.26
  4. Step 4: Simplify right side
    196,989.98x = 21,371,953,506.19
  5. Step 5: Solve for x
    x = 21,371,953,506.19/196,989.98
  6. Step 6: Final answer
    x = 108,492.59

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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.