Home / 226,887.45-312,429.40-221,852.67

Finding the Fourth Proportional to 226,887.45, 312,429.40 and 221,852.67

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Solution

The fourth proportional to 226,887.45, 312,429.40 and 221,852.67 is: 305,496.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,887.45 : 312,429.40 = 221,852.67 : x
  2. Step 2: Convert to fraction form
    226,887.45/312,429.40 = 221,852.67/x
  3. Step 3: Cross multiply
    226,887.45x = 312,429.40 × 221,852.67
  4. Step 4: Simplify right side
    226,887.45x = 69,313,296,576.50
  5. Step 5: Solve for x
    x = 69,313,296,576.50/226,887.45
  6. Step 6: Final answer
    x = 305,496.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.