Finding the Fourth Proportional to 286,171.79, 394,986.74 and 171,518.31
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Solution
The fourth proportional to 286,171.79, 394,986.74 and 171,518.31 is: 236,737.03
Step by Step Solution
- Step 1: Write the proportion equation
286,171.79 : 394,986.74 = 171,518.31 : x - Step 2: Convert to fraction form
286,171.79/394,986.74 = 171,518.31/x - Step 3: Cross multiply
286,171.79x = 394,986.74 × 171,518.31 - Step 4: Simplify right side
286,171.79x = 67,747,457,259.62 - Step 5: Solve for x
x = 67,747,457,259.62/286,171.79 - Step 6: Final answer
x = 236,737.03
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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.