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Finding the Fourth Proportional to 210,678, 316,017 and 62,934

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Solution

The fourth proportional to 210,678, 316,017 and 62,934 is: 94,401

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,678 : 316,017 = 62,934 : x
  2. Step 2: Convert to fraction form
    210,678/316,017 = 62,934/x
  3. Step 3: Cross multiply
    210,678x = 316,017 × 62,934
  4. Step 4: Simplify right side
    210,678x = 19,888,213,878
  5. Step 5: Solve for x
    x = 19,888,213,878/210,678
  6. Step 6: Final answer
    x = 94,401

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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.