Home / 221,813.37-331,802.87-168,100.65

Finding the Fourth Proportional to 221,813.37, 331,802.87 and 168,100.65

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Solution

The fourth proportional to 221,813.37, 331,802.87 and 168,100.65 is: 251,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,813.37 : 331,802.87 = 168,100.65 : x
  2. Step 2: Convert to fraction form
    221,813.37/331,802.87 = 168,100.65/x
  3. Step 3: Cross multiply
    221,813.37x = 331,802.87 × 168,100.65
  4. Step 4: Simplify right side
    221,813.37x = 55,776,277,278.36
  5. Step 5: Solve for x
    x = 55,776,277,278.36/221,813.37
  6. Step 6: Final answer
    x = 251,455.89

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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.