Finding the Fourth Proportional to 199,916.12, 299,726.04 and 121,011.68
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Solution
The fourth proportional to 199,916.12, 299,726.04 and 121,011.68 is: 181,427.85
Step by Step Solution
- Step 1: Write the proportion equation
199,916.12 : 299,726.04 = 121,011.68 : x - Step 2: Convert to fraction form
199,916.12/299,726.04 = 121,011.68/x - Step 3: Cross multiply
199,916.12x = 299,726.04 × 121,011.68 - Step 4: Simplify right side
199,916.12x = 36,270,351,640.15 - Step 5: Solve for x
x = 36,270,351,640.15/199,916.12 - Step 6: Final answer
x = 181,427.85
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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.