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Finding the Fourth Proportional to 254,690, 382,035 and 79,586

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Solution

The fourth proportional to 254,690, 382,035 and 79,586 is: 119,379

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,690 : 382,035 = 79,586 : x
  2. Step 2: Convert to fraction form
    254,690/382,035 = 79,586/x
  3. Step 3: Cross multiply
    254,690x = 382,035 × 79,586
  4. Step 4: Simplify right side
    254,690x = 30,404,637,510
  5. Step 5: Solve for x
    x = 30,404,637,510/254,690
  6. Step 6: Final answer
    x = 119,379

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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.