Finding the Fourth Proportional to 396,675.56, 547,277.09 and 253,518.18
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Solution
The fourth proportional to 396,675.56, 547,277.09 and 253,518.18 is: 349,768.69
Step by Step Solution
- Step 1: Write the proportion equation
396,675.56 : 547,277.09 = 253,518.18 : x - Step 2: Convert to fraction form
396,675.56/547,277.09 = 253,518.18/x - Step 3: Cross multiply
396,675.56x = 547,277.09 × 253,518.18 - Step 4: Simplify right side
396,675.56x = 138,744,690,544.91 - Step 5: Solve for x
x = 138,744,690,544.91/396,675.56 - Step 6: Final answer
x = 349,768.69
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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.