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Finding the Fourth Proportional to 383,882.22, 529,755.97 and 211,810.89

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Solution

The fourth proportional to 383,882.22, 529,755.97 and 211,810.89 is: 292,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,882.22 : 529,755.97 = 211,810.89 : x
  2. Step 2: Convert to fraction form
    383,882.22/529,755.97 = 211,810.89/x
  3. Step 3: Cross multiply
    383,882.22x = 529,755.97 × 211,810.89
  4. Step 4: Simplify right side
    383,882.22x = 112,208,083,488.51
  5. Step 5: Solve for x
    x = 112,208,083,488.51/383,882.22
  6. Step 6: Final answer
    x = 292,298.20

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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.