Finding the Fourth Proportional to 283,409.42, 390,780.52 and 211,668.26
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Solution
The fourth proportional to 283,409.42, 390,780.52 and 211,668.26 is: 291,859.85
Step by Step Solution
- Step 1: Write the proportion equation
283,409.42 : 390,780.52 = 211,668.26 : x - Step 2: Convert to fraction form
283,409.42/390,780.52 = 211,668.26/x - Step 3: Cross multiply
283,409.42x = 390,780.52 × 211,668.26 - Step 4: Simplify right side
283,409.42x = 82,715,830,227.22 - Step 5: Solve for x
x = 82,715,830,227.22/283,409.42 - Step 6: Final answer
x = 291,859.85
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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.