Finding the Fourth Proportional to 402,179.19, 555,013.97 and 220,907.87
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Solution
The fourth proportional to 402,179.19, 555,013.97 and 220,907.87 is: 304,856.53
Step by Step Solution
- Step 1: Write the proportion equation
402,179.19 : 555,013.97 = 220,907.87 : x - Step 2: Convert to fraction form
402,179.19/555,013.97 = 220,907.87/x - Step 3: Cross multiply
402,179.19x = 555,013.97 × 220,907.87 - Step 4: Simplify right side
402,179.19x = 122,606,953,932.94 - Step 5: Solve for x
x = 122,606,953,932.94/402,179.19 - Step 6: Final answer
x = 304,856.53
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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.