Finding the Fourth Proportional to 215,363.13, 296,882.42 and 137,830.23
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Solution
The fourth proportional to 215,363.13, 296,882.42 and 137,830.23 is: 190,001.75
Step by Step Solution
- Step 1: Write the proportion equation
215,363.13 : 296,882.42 = 137,830.23 : x - Step 2: Convert to fraction form
215,363.13/296,882.42 = 137,830.23/x - Step 3: Cross multiply
215,363.13x = 296,882.42 × 137,830.23 - Step 4: Simplify right side
215,363.13x = 40,919,371,542.41 - Step 5: Solve for x
x = 40,919,371,542.41/215,363.13 - Step 6: Final answer
x = 190,001.75
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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.