Finding the Fourth Proportional to 209,382.84, 288,922.08 and 141,547.42
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Solution
The fourth proportional to 209,382.84, 288,922.08 and 141,547.42 is: 195,317.70
Step by Step Solution
- Step 1: Write the proportion equation
209,382.84 : 288,922.08 = 141,547.42 : x - Step 2: Convert to fraction form
209,382.84/288,922.08 = 141,547.42/x - Step 3: Cross multiply
209,382.84x = 288,922.08 × 141,547.42 - Step 4: Simplify right side
209,382.84x = 40,896,175,005.03 - Step 5: Solve for x
x = 40,896,175,005.03/209,382.84 - Step 6: Final answer
x = 195,317.70
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1.5x scale
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.