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Finding the Third Proportional to 72,058 and 168,354

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Solution

The third proportional to 72,058 and 168,354 is: 393,336.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,058 : 168,354 = 168,354 : x
  2. Step 2: Convert to fraction form
    72,058/168,354 = 168,354/x
  3. Step 3: Cross multiply
    72,058x = 168,354 × 168,354
  4. Step 4: Simplify right side
    72,058x = 28,343,069,316
  5. Step 5: Solve for x
    x = 28,343,069,316/72,058
  6. Step 6: Final answer
    x = 393,336.89

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.