Finding the Fourth Proportional to 177,676.20, 266,514.30 and 72,437.80
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Solution
The fourth proportional to 177,676.20, 266,514.30 and 72,437.80 is: 108,656.70
Step by Step Solution
- Step 1: Write the proportion equation
177,676.20 : 266,514.30 = 72,437.80 : x - Step 2: Convert to fraction form
177,676.20/266,514.30 = 72,437.80/x - Step 3: Cross multiply
177,676.20x = 266,514.30 × 72,437.80 - Step 4: Simplify right side
177,676.20x = 19,305,709,560.54 - Step 5: Solve for x
x = 19,305,709,560.54/177,676.20 - Step 6: Final answer
x = 108,656.70
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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.