Home / 219,014.79-328,520.25-69,255.21

Finding the Fourth Proportional to 219,014.79, 328,520.25 and 69,255.21

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Solution

The fourth proportional to 219,014.79, 328,520.25 and 69,255.21 is: 103,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,014.79 : 328,520.25 = 69,255.21 : x
  2. Step 2: Convert to fraction form
    219,014.79/328,520.25 = 69,255.21/x
  3. Step 3: Cross multiply
    219,014.79x = 328,520.25 × 69,255.21
  4. Step 4: Simplify right side
    219,014.79x = 22,751,738,903.00
  5. Step 5: Solve for x
    x = 22,751,738,903.00/219,014.79
  6. Step 6: Final answer
    x = 103,882.20

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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.