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Finding the Fourth Proportional to 351,745.77, 527,628.51 and 219,009.45

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Solution

The fourth proportional to 351,745.77, 527,628.51 and 219,009.45 is: 328,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,745.77 : 527,628.51 = 219,009.45 : x
  2. Step 2: Convert to fraction form
    351,745.77/527,628.51 = 219,009.45/x
  3. Step 3: Cross multiply
    351,745.77x = 527,628.51 × 219,009.45
  4. Step 4: Simplify right side
    351,745.77x = 115,555,629,779.42
  5. Step 5: Solve for x
    x = 115,555,629,779.42/351,745.77
  6. Step 6: Final answer
    x = 328,520.31

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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.