Finding the Fourth Proportional to 306,960.80, 423,618.66 and 170,994.71
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Solution
The fourth proportional to 306,960.80, 423,618.66 and 170,994.71 is: 235,979.81
Step by Step Solution
- Step 1: Write the proportion equation
306,960.80 : 423,618.66 = 170,994.71 : x - Step 2: Convert to fraction form
306,960.80/423,618.66 = 170,994.71/x - Step 3: Cross multiply
306,960.80x = 423,618.66 × 170,994.71 - Step 4: Simplify right side
306,960.80x = 72,436,549,917.29 - Step 5: Solve for x
x = 72,436,549,917.29/306,960.80 - Step 6: Final answer
x = 235,979.81
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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.