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Finding the Third Proportional to 315,848 and 417,324

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Solution

The third proportional to 315,848 and 417,324 is: 551,402.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,848 : 417,324 = 417,324 : x
  2. Step 2: Convert to fraction form
    315,848/417,324 = 417,324/x
  3. Step 3: Cross multiply
    315,848x = 417,324 × 417,324
  4. Step 4: Simplify right side
    315,848x = 174,159,320,976
  5. Step 5: Solve for x
    x = 174,159,320,976/315,848
  6. Step 6: Final answer
    x = 551,402.32

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.