Finding the Fourth Proportional to 286,103.16, 394,781.99 and 171,354.92
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Solution
The fourth proportional to 286,103.16, 394,781.99 and 171,354.92 is: 236,445.60
Step by Step Solution
- Step 1: Write the proportion equation
286,103.16 : 394,781.99 = 171,354.92 : x - Step 2: Convert to fraction form
286,103.16/394,781.99 = 171,354.92/x - Step 3: Cross multiply
286,103.16x = 394,781.99 × 171,354.92 - Step 4: Simplify right side
286,103.16x = 67,647,833,483.21 - Step 5: Solve for x
x = 67,647,833,483.21/286,103.16 - Step 6: Final answer
x = 236,445.60
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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.