Finding the Fourth Proportional to 472,286.64, 651,736.62 and 257,422.08
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Solution
The fourth proportional to 472,286.64, 651,736.62 and 257,422.08 is: 355,232.15
Step by Step Solution
- Step 1: Write the proportion equation
472,286.64 : 651,736.62 = 257,422.08 : x - Step 2: Convert to fraction form
472,286.64/651,736.62 = 257,422.08/x - Step 3: Cross multiply
472,286.64x = 651,736.62 × 257,422.08 - Step 4: Simplify right side
472,286.64x = 167,771,396,332.57 - Step 5: Solve for x
x = 167,771,396,332.57/472,286.64 - Step 6: Final answer
x = 355,232.15
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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.