Finding the Fourth Proportional to 306,989.08, 423,638.50 and 171,022.84
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Solution
The fourth proportional to 306,989.08, 423,638.50 and 171,022.84 is: 236,007.94
Step by Step Solution
- Step 1: Write the proportion equation
306,989.08 : 423,638.50 = 171,022.84 : x - Step 2: Convert to fraction form
306,989.08/423,638.50 = 171,022.84/x - Step 3: Cross multiply
306,989.08x = 423,638.50 × 171,022.84 - Step 4: Simplify right side
306,989.08x = 72,451,859,403.34 - Step 5: Solve for x
x = 72,451,859,403.34/306,989.08 - Step 6: Final answer
x = 236,007.94
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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.