Finding the Fourth Proportional to 402,844.68, 555,914.88 and 221,575.14
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Solution
The fourth proportional to 402,844.68, 555,914.88 and 221,575.14 is: 305,767.76
Step by Step Solution
- Step 1: Write the proportion equation
402,844.68 : 555,914.88 = 221,575.14 : x - Step 2: Convert to fraction form
402,844.68/555,914.88 = 221,575.14/x - Step 3: Cross multiply
402,844.68x = 555,914.88 × 221,575.14 - Step 4: Simplify right side
402,844.68x = 123,176,917,364.08 - Step 5: Solve for x
x = 123,176,917,364.08/402,844.68 - Step 6: Final answer
x = 305,767.76
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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.