Finding the Fourth Proportional to 177,381.60, 266,104.80 and 72,211.20
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Solution
The fourth proportional to 177,381.60, 266,104.80 and 72,211.20 is: 108,329.99
Step by Step Solution
- Step 1: Write the proportion equation
177,381.60 : 266,104.80 = 72,211.20 : x - Step 2: Convert to fraction form
177,381.60/266,104.80 = 72,211.20/x - Step 3: Cross multiply
177,381.60x = 266,104.80 × 72,211.20 - Step 4: Simplify right side
177,381.60x = 19,215,746,933.76 - Step 5: Solve for x
x = 19,215,746,933.76/177,381.60 - Step 6: Final answer
x = 108,329.99
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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.