Finding the Fourth Proportional to 211,045.19, 291,230.82 and 115,533.41
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Solution
The fourth proportional to 211,045.19, 291,230.82 and 115,533.41 is: 159,429.79
Step by Step Solution
- Step 1: Write the proportion equation
211,045.19 : 291,230.82 = 115,533.41 : x - Step 2: Convert to fraction form
211,045.19/291,230.82 = 115,533.41/x - Step 3: Cross multiply
211,045.19x = 291,230.82 × 115,533.41 - Step 4: Simplify right side
211,045.19x = 33,646,889,731.70 - Step 5: Solve for x
x = 33,646,889,731.70/211,045.19 - Step 6: Final answer
x = 159,429.79
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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.