Finding the Fourth Proportional to 318,001.82, 438,869.43 and 216,252.99
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Solution
The fourth proportional to 318,001.82, 438,869.43 and 216,252.99 is: 298,447.44
Step by Step Solution
- Step 1: Write the proportion equation
318,001.82 : 438,869.43 = 216,252.99 : x - Step 2: Convert to fraction form
318,001.82/438,869.43 = 216,252.99/x - Step 3: Cross multiply
318,001.82x = 438,869.43 × 216,252.99 - Step 4: Simplify right side
318,001.82x = 94,906,826,457.10 - Step 5: Solve for x
x = 94,906,826,457.10/318,001.82 - Step 6: Final answer
x = 298,447.44
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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.