Finding the Fourth Proportional to 306,814.44, 423,318.78 and 197,872.68
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Solution
The fourth proportional to 306,814.44, 423,318.78 and 197,872.68 is: 273,009.38
Step by Step Solution
- Step 1: Write the proportion equation
306,814.44 : 423,318.78 = 197,872.68 : x - Step 2: Convert to fraction form
306,814.44/423,318.78 = 197,872.68/x - Step 3: Cross multiply
306,814.44x = 423,318.78 × 197,872.68 - Step 4: Simplify right side
306,814.44x = 83,763,221,492.93 - Step 5: Solve for x
x = 83,763,221,492.93/306,814.44 - Step 6: Final answer
x = 273,009.38
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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.