Finding the Fourth Proportional to 211,974.84, 292,511.52 and 121,331.52
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Solution
The fourth proportional to 211,974.84, 292,511.52 and 121,331.52 is: 167,429.62
Step by Step Solution
- Step 1: Write the proportion equation
211,974.84 : 292,511.52 = 121,331.52 : x - Step 2: Convert to fraction form
211,974.84/292,511.52 = 121,331.52/x - Step 3: Cross multiply
211,974.84x = 292,511.52 × 121,331.52 - Step 4: Simplify right side
211,974.84x = 35,490,867,339.11 - Step 5: Solve for x
x = 35,490,867,339.11/211,974.84 - Step 6: Final answer
x = 167,429.62
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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.