Finding the Fourth Proportional to 386,984.97, 534,023.82 and 214,911.81
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Solution
The fourth proportional to 386,984.97, 534,023.82 and 214,911.81 is: 296,569.72
Step by Step Solution
- Step 1: Write the proportion equation
386,984.97 : 534,023.82 = 214,911.81 : x - Step 2: Convert to fraction form
386,984.97/534,023.82 = 214,911.81/x - Step 3: Cross multiply
386,984.97x = 534,023.82 × 214,911.81 - Step 4: Simplify right side
386,984.97x = 114,768,025,739.31 - Step 5: Solve for x
x = 114,768,025,739.31/386,984.97 - Step 6: Final answer
x = 296,569.72
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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.