Finding the Fourth Proportional to 294,991.70, 407,088.42 and 160,855.70
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Solution
The fourth proportional to 294,991.70, 407,088.42 and 160,855.70 is: 221,980.80
Step by Step Solution
- Step 1: Write the proportion equation
294,991.70 : 407,088.42 = 160,855.70 : x - Step 2: Convert to fraction form
294,991.70/407,088.42 = 160,855.70/x - Step 3: Cross multiply
294,991.70x = 407,088.42 × 160,855.70 - Step 4: Simplify right side
294,991.70x = 65,482,492,760.99 - Step 5: Solve for x
x = 65,482,492,760.99/294,991.70 - Step 6: Final answer
x = 221,980.80
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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.