Finding the Fourth Proportional to 177,387.60, 266,113.80 and 72,217.20
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Solution
The fourth proportional to 177,387.60, 266,113.80 and 72,217.20 is: 108,338.99
Step by Step Solution
- Step 1: Write the proportion equation
177,387.60 : 266,113.80 = 72,217.20 : x - Step 2: Convert to fraction form
177,387.60/266,113.80 = 72,217.20/x - Step 3: Cross multiply
177,387.60x = 266,113.80 × 72,217.20 - Step 4: Simplify right side
177,387.60x = 19,217,993,517.36 - Step 5: Solve for x
x = 19,217,993,517.36/177,387.60 - Step 6: Final answer
x = 108,338.99
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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.