Finding the Fourth Proportional to 216,813.42, 325,358.92 and 117,043.08
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Solution
The fourth proportional to 216,813.42, 325,358.92 and 117,043.08 is: 175,639.54
Step by Step Solution
- Step 1: Write the proportion equation
216,813.42 : 325,358.92 = 117,043.08 : x - Step 2: Convert to fraction form
216,813.42/325,358.92 = 117,043.08/x - Step 3: Cross multiply
216,813.42x = 325,358.92 × 117,043.08 - Step 4: Simplify right side
216,813.42x = 38,081,010,102.27 - Step 5: Solve for x
x = 38,081,010,102.27/216,813.42 - Step 6: Final answer
x = 175,639.54
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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.