Finding the Fourth Proportional to 388,515.08, 582,856.00 and 220,116.08
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Solution
The fourth proportional to 388,515.08, 582,856.00 and 220,116.08 is: 330,221.36
Step by Step Solution
- Step 1: Write the proportion equation
388,515.08 : 582,856.00 = 220,116.08 : x - Step 2: Convert to fraction form
388,515.08/582,856.00 = 220,116.08/x - Step 3: Cross multiply
388,515.08x = 582,856.00 × 220,116.08 - Step 4: Simplify right side
388,515.08x = 128,295,980,069.48 - Step 5: Solve for x
x = 128,295,980,069.48/388,515.08 - Step 6: Final answer
x = 330,221.36
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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.