Finding the Fourth Proportional to 221,317.68, 332,467.56 and 137,140.08
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Solution
The fourth proportional to 221,317.68, 332,467.56 and 137,140.08 is: 206,014.39
Step by Step Solution
- Step 1: Write the proportion equation
221,317.68 : 332,467.56 = 137,140.08 : x - Step 2: Convert to fraction form
221,317.68/332,467.56 = 137,140.08/x - Step 3: Cross multiply
221,317.68x = 332,467.56 × 137,140.08 - Step 4: Simplify right side
221,317.68x = 45,594,627,775.80 - Step 5: Solve for x
x = 45,594,627,775.80/221,317.68 - Step 6: Final answer
x = 206,014.39
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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.