Home / 220,211.10-330,323.48-104,780.28

Finding the Fourth Proportional to 220,211.10, 330,323.48 and 104,780.28

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Solution

The fourth proportional to 220,211.10, 330,323.48 and 104,780.28 is: 157,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,211.10 : 330,323.48 = 104,780.28 : x
  2. Step 2: Convert to fraction form
    220,211.10/330,323.48 = 104,780.28/x
  3. Step 3: Cross multiply
    220,211.10x = 330,323.48 × 104,780.28
  4. Step 4: Simplify right side
    220,211.10x = 34,611,386,724.97
  5. Step 5: Solve for x
    x = 34,611,386,724.97/220,211.10
  6. Step 6: Final answer
    x = 157,173.67

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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.