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Finding the Third Proportional to 357,376 and 552,858

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Solution

The third proportional to 357,376 and 552,858 is: 855,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,376 : 552,858 = 552,858 : x
  2. Step 2: Convert to fraction form
    357,376/552,858 = 552,858/x
  3. Step 3: Cross multiply
    357,376x = 552,858 × 552,858
  4. Step 4: Simplify right side
    357,376x = 305,651,968,164
  5. Step 5: Solve for x
    x = 305,651,968,164/357,376
  6. Step 6: Final answer
    x = 855,267.19

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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.