Finding the Fourth Proportional to 402,770.64, 555,825.36 and 221,494.08
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Solution
The fourth proportional to 402,770.64, 555,825.36 and 221,494.08 is: 305,662.86
Step by Step Solution
- Step 1: Write the proportion equation
402,770.64 : 555,825.36 = 221,494.08 : x - Step 2: Convert to fraction form
402,770.64/555,825.36 = 221,494.08/x - Step 3: Cross multiply
402,770.64x = 555,825.36 × 221,494.08 - Step 4: Simplify right side
402,770.64x = 123,112,026,753.87 - Step 5: Solve for x
x = 123,112,026,753.87/402,770.64 - Step 6: Final answer
x = 305,662.86
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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.