Finding the Fourth Proportional to 384,611.52, 530,678.66 and 221,258.00
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Solution
The fourth proportional to 384,611.52, 530,678.66 and 221,258.00 is: 305,286.99
Step by Step Solution
- Step 1: Write the proportion equation
384,611.52 : 530,678.66 = 221,258.00 : x - Step 2: Convert to fraction form
384,611.52/530,678.66 = 221,258.00/x - Step 3: Cross multiply
384,611.52x = 530,678.66 × 221,258.00 - Step 4: Simplify right side
384,611.52x = 117,416,896,189.62 - Step 5: Solve for x
x = 117,416,896,189.62/384,611.52 - Step 6: Final answer
x = 305,286.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.