Finding the Fourth Proportional to 356,319.28, 491,381.28 and 213,056.08
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Solution
The fourth proportional to 356,319.28, 491,381.28 and 213,056.08 is: 293,814.49
Step by Step Solution
- Step 1: Write the proportion equation
356,319.28 : 491,381.28 = 213,056.08 : x - Step 2: Convert to fraction form
356,319.28/491,381.28 = 213,056.08/x - Step 3: Cross multiply
356,319.28x = 491,381.28 × 213,056.08 - Step 4: Simplify right side
356,319.28x = 104,691,769,302.18 - Step 5: Solve for x
x = 104,691,769,302.18/356,319.28 - Step 6: Final answer
x = 293,814.49
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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.