Finding the Fourth Proportional to 346,668.71, 478,405.98 and 203,431.14
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Solution
The fourth proportional to 346,668.71, 478,405.98 and 203,431.14 is: 280,736.83
Step by Step Solution
- Step 1: Write the proportion equation
346,668.71 : 478,405.98 = 203,431.14 : x - Step 2: Convert to fraction form
346,668.71/478,405.98 = 203,431.14/x - Step 3: Cross multiply
346,668.71x = 478,405.98 × 203,431.14 - Step 4: Simplify right side
346,668.71x = 97,322,673,894.22 - Step 5: Solve for x
x = 97,322,673,894.22/346,668.71 - Step 6: Final answer
x = 280,736.83
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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.