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Finding the Third Proportional to 357,374 and 552,855

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Solution

The third proportional to 357,374 and 552,855 is: 855,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,374 : 552,855 = 552,855 : x
  2. Step 2: Convert to fraction form
    357,374/552,855 = 552,855/x
  3. Step 3: Cross multiply
    357,374x = 552,855 × 552,855
  4. Step 4: Simplify right side
    357,374x = 305,648,651,025
  5. Step 5: Solve for x
    x = 305,648,651,025/357,374
  6. Step 6: Final answer
    x = 855,262.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.