Finding the Fourth Proportional to 306,960.05, 423,617.63 and 170,993.96
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Solution
The fourth proportional to 306,960.05, 423,617.63 and 170,993.96 is: 235,978.77
Step by Step Solution
- Step 1: Write the proportion equation
306,960.05 : 423,617.63 = 170,993.96 : x - Step 2: Convert to fraction form
306,960.05/423,617.63 = 170,993.96/x - Step 3: Cross multiply
306,960.05x = 423,617.63 × 170,993.96 - Step 4: Simplify right side
306,960.05x = 72,436,053,106.46 - Step 5: Solve for x
x = 72,436,053,106.46/306,960.05 - Step 6: Final answer
x = 235,978.77
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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.