Finding the Fourth Proportional to 266,781.39, 400,130.33 and 89,286.99
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Solution
The fourth proportional to 266,781.39, 400,130.33 and 89,286.99 is: 133,916.51
Step by Step Solution
- Step 1: Write the proportion equation
266,781.39 : 400,130.33 = 89,286.99 : x - Step 2: Convert to fraction form
266,781.39/400,130.33 = 89,286.99/x - Step 3: Cross multiply
266,781.39x = 400,130.33 × 89,286.99 - Step 4: Simplify right side
266,781.39x = 35,726,432,326.97 - Step 5: Solve for x
x = 35,726,432,326.97/266,781.39 - Step 6: Final answer
x = 133,916.51
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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.