Home / 219,305.57-328,970.09-69,557.22

Finding the Fourth Proportional to 219,305.57, 328,970.09 and 69,557.22

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Solution

The fourth proportional to 219,305.57, 328,970.09 and 69,557.22 is: 104,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,305.57 : 328,970.09 = 69,557.22 : x
  2. Step 2: Convert to fraction form
    219,305.57/328,970.09 = 69,557.22/x
  3. Step 3: Cross multiply
    219,305.57x = 328,970.09 × 69,557.22
  4. Step 4: Simplify right side
    219,305.57x = 22,882,245,097.44
  5. Step 5: Solve for x
    x = 22,882,245,097.44/219,305.57
  6. Step 6: Final answer
    x = 104,339.56

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1.5x scale

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.