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Finding the Fourth Proportional to 255,368, 383,052 and 80,264

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Solution

The fourth proportional to 255,368, 383,052 and 80,264 is: 120,396

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,368 : 383,052 = 80,264 : x
  2. Step 2: Convert to fraction form
    255,368/383,052 = 80,264/x
  3. Step 3: Cross multiply
    255,368x = 383,052 × 80,264
  4. Step 4: Simplify right side
    255,368x = 30,745,285,728
  5. Step 5: Solve for x
    x = 30,745,285,728/255,368
  6. Step 6: Final answer
    x = 120,396

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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.