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Finding the Third Proportional to 197,129 and 431,575

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Solution

The third proportional to 197,129 and 431,575 is: 944,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,129 : 431,575 = 431,575 : x
  2. Step 2: Convert to fraction form
    197,129/431,575 = 431,575/x
  3. Step 3: Cross multiply
    197,129x = 431,575 × 431,575
  4. Step 4: Simplify right side
    197,129x = 186,256,980,625
  5. Step 5: Solve for x
    x = 186,256,980,625/197,129
  6. Step 6: Final answer
    x = 944,848.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.