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Finding the Fourth Proportional to 254,466, 381,699 and 79,362

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Solution

The fourth proportional to 254,466, 381,699 and 79,362 is: 119,043

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,466 : 381,699 = 79,362 : x
  2. Step 2: Convert to fraction form
    254,466/381,699 = 79,362/x
  3. Step 3: Cross multiply
    254,466x = 381,699 × 79,362
  4. Step 4: Simplify right side
    254,466x = 30,292,396,038
  5. Step 5: Solve for x
    x = 30,292,396,038/254,466
  6. Step 6: Final answer
    x = 119,043

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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.