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Finding the Fourth Proportional to 208,929.63, 313,518.98 and 75,820.27

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Solution

The fourth proportional to 208,929.63, 313,518.98 and 75,820.27 is: 113,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,929.63 : 313,518.98 = 75,820.27 : x
  2. Step 2: Convert to fraction form
    208,929.63/313,518.98 = 75,820.27/x
  3. Step 3: Cross multiply
    208,929.63x = 313,518.98 × 75,820.27
  4. Step 4: Simplify right side
    208,929.63x = 23,771,093,713.72
  5. Step 5: Solve for x
    x = 23,771,093,713.72/208,929.63
  6. Step 6: Final answer
    x = 113,775.60

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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.