Finding the Fourth Proportional to 221,572.60, 332,289.18 and 71,778.14
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Solution
The fourth proportional to 221,572.60, 332,289.18 and 71,778.14 is: 107,644.62
Step by Step Solution
- Step 1: Write the proportion equation
221,572.60 : 332,289.18 = 71,778.14 : x - Step 2: Convert to fraction form
221,572.60/332,289.18 = 71,778.14/x - Step 3: Cross multiply
221,572.60x = 332,289.18 × 71,778.14 - Step 4: Simplify right side
221,572.60x = 23,851,097,621.08 - Step 5: Solve for x
x = 23,851,097,621.08/221,572.60 - Step 6: Final answer
x = 107,644.62
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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.