Finding the Fourth Proportional to 315,540.81, 435,502.44 and 186,473.79
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Solution
The fourth proportional to 315,540.81, 435,502.44 and 186,473.79 is: 257,367.00
Step by Step Solution
- Step 1: Write the proportion equation
315,540.81 : 435,502.44 = 186,473.79 : x - Step 2: Convert to fraction form
315,540.81/435,502.44 = 186,473.79/x - Step 3: Cross multiply
315,540.81x = 435,502.44 × 186,473.79 - Step 4: Simplify right side
315,540.81x = 81,209,790,541.05 - Step 5: Solve for x
x = 81,209,790,541.05/315,540.81 - Step 6: Final answer
x = 257,367.00
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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.