Finding the Fourth Proportional to 388,635.60, 536,302.97 and 216,544.68
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Solution
The fourth proportional to 388,635.60, 536,302.97 and 216,544.68 is: 298,823.77
Step by Step Solution
- Step 1: Write the proportion equation
388,635.60 : 536,302.97 = 216,544.68 : x - Step 2: Convert to fraction form
388,635.60/536,302.97 = 216,544.68/x - Step 3: Cross multiply
388,635.60x = 536,302.97 × 216,544.68 - Step 4: Simplify right side
388,635.60x = 116,133,555,021.70 - Step 5: Solve for x
x = 116,133,555,021.70/388,635.60 - Step 6: Final answer
x = 298,823.77
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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.