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Finding the Fourth Proportional to 254,626.83, 381,218.49 and 211,586.67

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Solution

The fourth proportional to 254,626.83, 381,218.49 and 211,586.67 is: 316,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,626.83 : 381,218.49 = 211,586.67 : x
  2. Step 2: Convert to fraction form
    254,626.83/381,218.49 = 211,586.67/x
  3. Step 3: Cross multiply
    254,626.83x = 381,218.49 × 211,586.67
  4. Step 4: Simplify right side
    254,626.83x = 80,660,750,841.53
  5. Step 5: Solve for x
    x = 80,660,750,841.53/254,626.83
  6. Step 6: Final answer
    x = 316,780.25

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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.