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Finding the Third Proportional to 196,120.50 and 423,342

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Solution

The third proportional to 196,120.50 and 423,342 is: 913,818.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,120.50 : 423,342 = 423,342 : x
  2. Step 2: Convert to fraction form
    196,120.50/423,342 = 423,342/x
  3. Step 3: Cross multiply
    196,120.50x = 423,342 × 423,342
  4. Step 4: Simplify right side
    196,120.50x = 179,218,448,964
  5. Step 5: Solve for x
    x = 179,218,448,964/196,120.50
  6. Step 6: Final answer
    x = 913,818.03

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.