Finding the Fourth Proportional to 276,816.60, 414,965.70 and 216,811.80
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Solution
The fourth proportional to 276,816.60, 414,965.70 and 216,811.80 is: 325,014.69
Step by Step Solution
- Step 1: Write the proportion equation
276,816.60 : 414,965.70 = 216,811.80 : x - Step 2: Convert to fraction form
276,816.60/414,965.70 = 216,811.80/x - Step 3: Cross multiply
276,816.60x = 414,965.70 × 216,811.80 - Step 4: Simplify right side
276,816.60x = 89,969,460,355.26 - Step 5: Solve for x
x = 89,969,460,355.26/276,816.60 - Step 6: Final answer
x = 325,014.69
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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.