Finding the Fourth Proportional to 386,536.26, 533,478.34 and 235,720.74
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Solution
The fourth proportional to 386,536.26, 533,478.34 and 235,720.74 is: 325,330.17
Step by Step Solution
- Step 1: Write the proportion equation
386,536.26 : 533,478.34 = 235,720.74 : x - Step 2: Convert to fraction form
386,536.26/533,478.34 = 235,720.74/x - Step 3: Cross multiply
386,536.26x = 533,478.34 × 235,720.74 - Step 4: Simplify right side
386,536.26x = 125,751,909,078.77 - Step 5: Solve for x
x = 125,751,909,078.77/386,536.26 - Step 6: Final answer
x = 325,330.17
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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.