Finding the Fourth Proportional to 318,725.42, 477,935.64 and 185,643.63
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Solution
The fourth proportional to 318,725.42, 477,935.64 and 185,643.63 is: 278,376.63
Step by Step Solution
- Step 1: Write the proportion equation
318,725.42 : 477,935.64 = 185,643.63 : x - Step 2: Convert to fraction form
318,725.42/477,935.64 = 185,643.63/x - Step 3: Cross multiply
318,725.42x = 477,935.64 × 185,643.63 - Step 4: Simplify right side
318,725.42x = 88,725,707,115.97 - Step 5: Solve for x
x = 88,725,707,115.97/318,725.42 - Step 6: Final answer
x = 278,376.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.