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Finding the Fourth Proportional to 264,010.37, 396,027.85 and 77,021.87

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Solution

The fourth proportional to 264,010.37, 396,027.85 and 77,021.87 is: 115,536.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,010.37 : 396,027.85 = 77,021.87 : x
  2. Step 2: Convert to fraction form
    264,010.37/396,027.85 = 77,021.87/x
  3. Step 3: Cross multiply
    264,010.37x = 396,027.85 × 77,021.87
  4. Step 4: Simplify right side
    264,010.37x = 30,502,803,406.39
  5. Step 5: Solve for x
    x = 30,502,803,406.39/264,010.37
  6. Step 6: Final answer
    x = 115,536.39

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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.