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Finding the Third Proportional to 155,219,270 and 258,683,193

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Solution

The third proportional to 155,219,270 and 258,683,193 is: 431,112,672.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,219,270 : 258,683,193 = 258,683,193 : x
  2. Step 2: Convert to fraction form
    155,219,270/258,683,193 = 258,683,193/x
  3. Step 3: Cross multiply
    155,219,270x = 258,683,193 × 258,683,193
  4. Step 4: Simplify right side
    155,219,270x = 66,916,994,340,675,248
  5. Step 5: Solve for x
    x = 66,916,994,340,675,248/155,219,270
  6. Step 6: Final answer
    x = 431,112,672.68

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.