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Finding the Fourth Proportional to 353,626.54, 488,071.91 and 200,678.95

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Solution

The fourth proportional to 353,626.54, 488,071.91 and 200,678.95 is: 276,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,626.54 : 488,071.91 = 200,678.95 : x
  2. Step 2: Convert to fraction form
    353,626.54/488,071.91 = 200,678.95/x
  3. Step 3: Cross multiply
    353,626.54x = 488,071.91 × 200,678.95
  4. Step 4: Simplify right side
    353,626.54x = 97,945,757,704.81
  5. Step 5: Solve for x
    x = 97,945,757,704.81/353,626.54
  6. Step 6: Final answer
    x = 276,975.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.