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Finding the Fourth Proportional to 210,618, 315,927 and 62,874

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Solution

The fourth proportional to 210,618, 315,927 and 62,874 is: 94,311

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,618 : 315,927 = 62,874 : x
  2. Step 2: Convert to fraction form
    210,618/315,927 = 62,874/x
  3. Step 3: Cross multiply
    210,618x = 315,927 × 62,874
  4. Step 4: Simplify right side
    210,618x = 19,863,594,198
  5. Step 5: Solve for x
    x = 19,863,594,198/210,618
  6. Step 6: Final answer
    x = 94,311

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.