Finding the Fourth Proportional to 309,863.49, 464,991.84 and 132,371.79
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Solution
The fourth proportional to 309,863.49, 464,991.84 and 132,371.79 is: 198,641.67
Step by Step Solution
- Step 1: Write the proportion equation
309,863.49 : 464,991.84 = 132,371.79 : x - Step 2: Convert to fraction form
309,863.49/464,991.84 = 132,371.79/x - Step 3: Cross multiply
309,863.49x = 464,991.84 × 132,371.79 - Step 4: Simplify right side
309,863.49x = 61,551,802,196.19 - Step 5: Solve for x
x = 61,551,802,196.19/309,863.49 - Step 6: Final answer
x = 198,641.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.