Finding the Fourth Proportional to 316,723.26, 437,078.28 and 173,485.68
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Solution
The fourth proportional to 316,723.26, 437,078.28 and 173,485.68 is: 239,410.34
Step by Step Solution
- Step 1: Write the proportion equation
316,723.26 : 437,078.28 = 173,485.68 : x - Step 2: Convert to fraction form
316,723.26/437,078.28 = 173,485.68/x - Step 3: Cross multiply
316,723.26x = 437,078.28 × 173,485.68 - Step 4: Simplify right side
316,723.26x = 75,826,822,619.03 - Step 5: Solve for x
x = 75,826,822,619.03/316,723.26 - Step 6: Final answer
x = 239,410.34
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1.5x scale
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.