Finding the Fourth Proportional to 289,135.81, 399,252.35 and 181,740.43
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Solution
The fourth proportional to 289,135.81, 399,252.35 and 181,740.43 is: 250,955.74
Step by Step Solution
- Step 1: Write the proportion equation
289,135.81 : 399,252.35 = 181,740.43 : x - Step 2: Convert to fraction form
289,135.81/399,252.35 = 181,740.43/x - Step 3: Cross multiply
289,135.81x = 399,252.35 × 181,740.43 - Step 4: Simplify right side
289,135.81x = 72,560,290,862.55 - Step 5: Solve for x
x = 72,560,290,862.55/289,135.81 - Step 6: Final answer
x = 250,955.74
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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.