Finding the Fourth Proportional to 402,194.96, 555,033.59 and 220,911.09
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Solution
The fourth proportional to 402,194.96, 555,033.59 and 220,911.09 is: 304,859.80
Step by Step Solution
- Step 1: Write the proportion equation
402,194.96 : 555,033.59 = 220,911.09 : x - Step 2: Convert to fraction form
402,194.96/555,033.59 = 220,911.09/x - Step 3: Cross multiply
402,194.96x = 555,033.59 × 220,911.09 - Step 4: Simplify right side
402,194.96x = 122,613,075,905.79 - Step 5: Solve for x
x = 122,613,075,905.79/402,194.96 - Step 6: Final answer
x = 304,859.80
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1.5x scale
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.