Finding the Fourth Proportional to 177,644.80, 266,467.20 and 72,539.20
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Solution
The fourth proportional to 177,644.80, 266,467.20 and 72,539.20 is: 108,808.80
Step by Step Solution
- Step 1: Write the proportion equation
177,644.80 : 266,467.20 = 72,539.20 : x - Step 2: Convert to fraction form
177,644.80/266,467.20 = 72,539.20/x - Step 3: Cross multiply
177,644.80x = 266,467.20 × 72,539.20 - Step 4: Simplify right side
177,644.80x = 19,329,317,514.24 - Step 5: Solve for x
x = 19,329,317,514.24/177,644.80 - Step 6: Final answer
x = 108,808.80
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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.