Finding the Fourth Proportional to 382,956.70, 528,465.99 and 213,187.18
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Solution
The fourth proportional to 382,956.70, 528,465.99 and 213,187.18 is: 294,190.37
Step by Step Solution
- Step 1: Write the proportion equation
382,956.70 : 528,465.99 = 213,187.18 : x - Step 2: Convert to fraction form
382,956.70/528,465.99 = 213,187.18/x - Step 3: Cross multiply
382,956.70x = 528,465.99 × 213,187.18 - Step 4: Simplify right side
382,956.70x = 112,662,174,134.01 - Step 5: Solve for x
x = 112,662,174,134.01/382,956.70 - Step 6: Final answer
x = 294,190.37
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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.