Finding the Fourth Proportional to 157,919.20, 236,005.36 and 141,472.96
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Solution
The fourth proportional to 157,919.20, 236,005.36 and 141,472.96 is: 211,426.96
Step by Step Solution
- Step 1: Write the proportion equation
157,919.20 : 236,005.36 = 141,472.96 : x - Step 2: Convert to fraction form
157,919.20/236,005.36 = 141,472.96/x - Step 3: Cross multiply
157,919.20x = 236,005.36 × 141,472.96 - Step 4: Simplify right side
157,919.20x = 33,388,376,855.07 - Step 5: Solve for x
x = 33,388,376,855.07/157,919.20 - Step 6: Final answer
x = 211,426.96
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.