Finding the Fourth Proportional to 188,630.10, 282,990.12 and 55,514.70
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Solution
The fourth proportional to 188,630.10, 282,990.12 and 55,514.70 is: 83,285.28
Step by Step Solution
- Step 1: Write the proportion equation
188,630.10 : 282,990.12 = 55,514.70 : x - Step 2: Convert to fraction form
188,630.10/282,990.12 = 55,514.70/x - Step 3: Cross multiply
188,630.10x = 282,990.12 × 55,514.70 - Step 4: Simplify right side
188,630.10x = 15,710,111,614.76 - Step 5: Solve for x
x = 15,710,111,614.76/188,630.10 - Step 6: Final answer
x = 83,285.28
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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.