Finding the Fourth Proportional to 403,961.28, 557,235.36 and 252,795.84
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Solution
The fourth proportional to 403,961.28, 557,235.36 and 252,795.84 is: 348,713.57
Step by Step Solution
- Step 1: Write the proportion equation
403,961.28 : 557,235.36 = 252,795.84 : x - Step 2: Convert to fraction form
403,961.28/557,235.36 = 252,795.84/x - Step 3: Cross multiply
403,961.28x = 557,235.36 × 252,795.84 - Step 4: Simplify right side
403,961.28x = 140,866,780,908.90 - Step 5: Solve for x
x = 140,866,780,908.90/403,961.28 - Step 6: Final answer
x = 348,713.57
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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.