Finding the Fourth Proportional to 385,790.67, 532,368.36 and 211,326.17
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Solution
The fourth proportional to 385,790.67, 532,368.36 and 211,326.17 is: 291,617.64
Step by Step Solution
- Step 1: Write the proportion equation
385,790.67 : 532,368.36 = 211,326.17 : x - Step 2: Convert to fraction form
385,790.67/532,368.36 = 211,326.17/x - Step 3: Cross multiply
385,790.67x = 532,368.36 × 211,326.17 - Step 4: Simplify right side
385,790.67x = 112,503,363,886.14 - Step 5: Solve for x
x = 112,503,363,886.14/385,790.67 - Step 6: Final answer
x = 291,617.64
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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.