Finding the Fourth Proportional to 402,775.08, 555,817.86 and 221,486.82
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Solution
The fourth proportional to 402,775.08, 555,817.86 and 221,486.82 is: 305,645.35
Step by Step Solution
- Step 1: Write the proportion equation
402,775.08 : 555,817.86 = 221,486.82 : x - Step 2: Convert to fraction form
402,775.08/555,817.86 = 221,486.82/x - Step 3: Cross multiply
402,775.08x = 555,817.86 × 221,486.82 - Step 4: Simplify right side
402,775.08x = 123,106,330,310.61 - Step 5: Solve for x
x = 123,106,330,310.61/402,775.08 - Step 6: Final answer
x = 305,645.35
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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.