Finding the Fourth Proportional to 476,286.12, 657,283.34 and 261,446.18
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Solution
The fourth proportional to 476,286.12, 657,283.34 and 261,446.18 is: 360,800.39
Step by Step Solution
- Step 1: Write the proportion equation
476,286.12 : 657,283.34 = 261,446.18 : x - Step 2: Convert to fraction form
476,286.12/657,283.34 = 261,446.18/x - Step 3: Cross multiply
476,286.12x = 657,283.34 × 261,446.18 - Step 4: Simplify right side
476,286.12x = 171,844,218,420.64 - Step 5: Solve for x
x = 171,844,218,420.64/476,286.12 - Step 6: Final answer
x = 360,800.39
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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.