Finding the Fourth Proportional to 356,397.08, 491,827.80 and 213,157.12
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Solution
The fourth proportional to 356,397.08, 491,827.80 and 213,157.12 is: 294,156.72
Step by Step Solution
- Step 1: Write the proportion equation
356,397.08 : 491,827.80 = 213,157.12 : x - Step 2: Convert to fraction form
356,397.08/491,827.80 = 213,157.12/x - Step 3: Cross multiply
356,397.08x = 491,827.80 × 213,157.12 - Step 4: Simplify right side
356,397.08x = 104,836,597,383.94 - Step 5: Solve for x
x = 104,836,597,383.94/356,397.08 - Step 6: Final answer
x = 294,156.72
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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.