Home / 219,078.07-328,675.32-69,321.02

Finding the Fourth Proportional to 219,078.07, 328,675.32 and 69,321.02

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Solution

The fourth proportional to 219,078.07, 328,675.32 and 69,321.02 is: 103,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,078.07 : 328,675.32 = 69,321.02 : x
  2. Step 2: Convert to fraction form
    219,078.07/328,675.32 = 69,321.02/x
  3. Step 3: Cross multiply
    219,078.07x = 328,675.32 × 69,321.02
  4. Step 4: Simplify right side
    219,078.07x = 22,784,106,787.85
  5. Step 5: Solve for x
    x = 22,784,106,787.85/219,078.07
  6. Step 6: Final answer
    x = 103,999.94

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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.