Home / 219,806.37-329,116.73-143,716.20

Finding the Fourth Proportional to 219,806.37, 329,116.73 and 143,716.20

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Solution

The fourth proportional to 219,806.37, 329,116.73 and 143,716.20 is: 215,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,806.37 : 329,116.73 = 143,716.20 : x
  2. Step 2: Convert to fraction form
    219,806.37/329,116.73 = 143,716.20/x
  3. Step 3: Cross multiply
    219,806.37x = 329,116.73 × 143,716.20
  4. Step 4: Simplify right side
    219,806.37x = 47,299,405,775.40
  5. Step 5: Solve for x
    x = 47,299,405,775.40/219,806.37
  6. Step 6: Final answer
    x = 215,186.69

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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.