Finding the Fourth Proportional to 306,621.81, 423,152.01 and 170,664.44
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Solution
The fourth proportional to 306,621.81, 423,152.01 and 170,664.44 is: 235,524.66
Step by Step Solution
- Step 1: Write the proportion equation
306,621.81 : 423,152.01 = 170,664.44 : x - Step 2: Convert to fraction form
306,621.81/423,152.01 = 170,664.44/x - Step 3: Cross multiply
306,621.81x = 423,152.01 × 170,664.44 - Step 4: Simplify right side
306,621.81x = 72,216,998,705.76 - Step 5: Solve for x
x = 72,216,998,705.76/306,621.81 - Step 6: Final answer
x = 235,524.66
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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.