Home / 219,190.15-328,801.69-69,442.21

Finding the Fourth Proportional to 219,190.15, 328,801.69 and 69,442.21

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Solution

The fourth proportional to 219,190.15, 328,801.69 and 69,442.21 is: 104,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,190.15 : 328,801.69 = 69,442.21 : x
  2. Step 2: Convert to fraction form
    219,190.15/328,801.69 = 69,442.21/x
  3. Step 3: Cross multiply
    219,190.15x = 328,801.69 × 69,442.21
  4. Step 4: Simplify right side
    219,190.15x = 22,832,714,187.72
  5. Step 5: Solve for x
    x = 22,832,714,187.72/219,190.15
  6. Step 6: Final answer
    x = 104,168.53

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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.