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Finding the Fourth Proportional to 208,522.98, 312,821.53 and 75,588.93

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Solution

The fourth proportional to 208,522.98, 312,821.53 and 75,588.93 is: 113,396.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,522.98 : 312,821.53 = 75,588.93 : x
  2. Step 2: Convert to fraction form
    208,522.98/312,821.53 = 75,588.93/x
  3. Step 3: Cross multiply
    208,522.98x = 312,821.53 × 75,588.93
  4. Step 4: Simplify right side
    208,522.98x = 23,645,844,544.69
  5. Step 5: Solve for x
    x = 23,645,844,544.69/208,522.98
  6. Step 6: Final answer
    x = 113,396.83

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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.