Finding the Fourth Proportional to 286,104.13, 394,783.38 and 171,355.90
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Solution
The fourth proportional to 286,104.13, 394,783.38 and 171,355.90 is: 236,446.99
Step by Step Solution
- Step 1: Write the proportion equation
286,104.13 : 394,783.38 = 171,355.90 : x - Step 2: Convert to fraction form
286,104.13/394,783.38 = 171,355.90/x - Step 3: Cross multiply
286,104.13x = 394,783.38 × 171,355.90 - Step 4: Simplify right side
286,104.13x = 67,648,461,384.94 - Step 5: Solve for x
x = 67,648,461,384.94/286,104.13 - Step 6: Final answer
x = 236,446.99
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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.