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Finding the Third Proportional to 368,013 and 555,518

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Solution

The third proportional to 368,013 and 555,518 is: 838,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,013 : 555,518 = 555,518 : x
  2. Step 2: Convert to fraction form
    368,013/555,518 = 555,518/x
  3. Step 3: Cross multiply
    368,013x = 555,518 × 555,518
  4. Step 4: Simplify right side
    368,013x = 308,600,248,324
  5. Step 5: Solve for x
    x = 308,600,248,324/368,013
  6. Step 6: Final answer
    x = 838,558.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.