Finding the Fourth Proportional to 211,377.79, 291,701.28 and 115,882.44
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Solution
The fourth proportional to 211,377.79, 291,701.28 and 115,882.44 is: 159,917.72
Step by Step Solution
- Step 1: Write the proportion equation
211,377.79 : 291,701.28 = 115,882.44 : x - Step 2: Convert to fraction form
211,377.79/291,701.28 = 115,882.44/x - Step 3: Cross multiply
211,377.79x = 291,701.28 × 115,882.44 - Step 4: Simplify right side
211,377.79x = 33,803,054,619.02 - Step 5: Solve for x
x = 33,803,054,619.02/211,377.79 - Step 6: Final answer
x = 159,917.72
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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.