Finding the Fourth Proportional to 211,363.12, 291,678.33 and 115,869.79
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Solution
The fourth proportional to 211,363.12, 291,678.33 and 115,869.79 is: 159,898.79
Step by Step Solution
- Step 1: Write the proportion equation
211,363.12 : 291,678.33 = 115,869.79 : x - Step 2: Convert to fraction form
211,363.12/291,678.33 = 115,869.79/x - Step 3: Cross multiply
211,363.12x = 291,678.33 × 115,869.79 - Step 4: Simplify right side
211,363.12x = 33,796,706,844.65 - Step 5: Solve for x
x = 33,796,706,844.65/211,363.12 - Step 6: Final answer
x = 159,898.79
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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.