Home / 223,375.32-308,258.94-122,779.80

Finding the Fourth Proportional to 223,375.32, 308,258.94 and 122,779.80

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Solution

The fourth proportional to 223,375.32, 308,258.94 and 122,779.80 is: 169,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,375.32 : 308,258.94 = 122,779.80 : x
  2. Step 2: Convert to fraction form
    223,375.32/308,258.94 = 122,779.80/x
  3. Step 3: Cross multiply
    223,375.32x = 308,258.94 × 122,779.80
  4. Step 4: Simplify right side
    223,375.32x = 37,847,971,001.41
  5. Step 5: Solve for x
    x = 37,847,971,001.41/223,375.32
  6. Step 6: Final answer
    x = 169,436.67

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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.