Finding the Fourth Proportional to 356,279.99, 491,660.55 and 203,365.62
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Solution
The fourth proportional to 356,279.99, 491,660.55 and 203,365.62 is: 280,641.23
Step by Step Solution
- Step 1: Write the proportion equation
356,279.99 : 491,660.55 = 203,365.62 : x - Step 2: Convert to fraction form
356,279.99/491,660.55 = 203,365.62/x - Step 3: Cross multiply
356,279.99x = 491,660.55 × 203,365.62 - Step 4: Simplify right side
356,279.99x = 99,986,852,580.29 - Step 5: Solve for x
x = 99,986,852,580.29/356,279.99 - Step 6: Final answer
x = 280,641.23
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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.