Finding the Fourth Proportional to 402,480.72, 555,436.71 and 221,199.08
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Solution
The fourth proportional to 402,480.72, 555,436.71 and 221,199.08 is: 305,262.04
Step by Step Solution
- Step 1: Write the proportion equation
402,480.72 : 555,436.71 = 221,199.08 : x - Step 2: Convert to fraction form
402,480.72/555,436.71 = 221,199.08/x - Step 3: Cross multiply
402,480.72x = 555,436.71 × 221,199.08 - Step 4: Simplify right side
402,480.72x = 122,862,086,473.04 - Step 5: Solve for x
x = 122,862,086,473.04/402,480.72 - Step 6: Final answer
x = 305,262.04
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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.