Finding the Fourth Proportional to 356,329.49, 491,742.61 and 203,364.63
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Solution
The fourth proportional to 356,329.49, 491,742.61 and 203,364.63 is: 280,647.71
Step by Step Solution
- Step 1: Write the proportion equation
356,329.49 : 491,742.61 = 203,364.63 : x - Step 2: Convert to fraction form
356,329.49/491,742.61 = 203,364.63/x - Step 3: Cross multiply
356,329.49x = 491,742.61 × 203,364.63 - Step 4: Simplify right side
356,329.49x = 100,003,053,429.47 - Step 5: Solve for x
x = 100,003,053,429.47/356,329.49 - Step 6: Final answer
x = 280,647.71
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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.