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Finding the Fourth Proportional to 254,684, 382,026 and 79,580

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Solution

The fourth proportional to 254,684, 382,026 and 79,580 is: 119,370

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,684 : 382,026 = 79,580 : x
  2. Step 2: Convert to fraction form
    254,684/382,026 = 79,580/x
  3. Step 3: Cross multiply
    254,684x = 382,026 × 79,580
  4. Step 4: Simplify right side
    254,684x = 30,401,629,080
  5. Step 5: Solve for x
    x = 30,401,629,080/254,684
  6. Step 6: Final answer
    x = 119,370

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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.