Finding the Fourth Proportional to 311,577.48, 429,977.14 and 168,337.48
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Solution
The fourth proportional to 311,577.48, 429,977.14 and 168,337.48 is: 232,305.84
Step by Step Solution
- Step 1: Write the proportion equation
311,577.48 : 429,977.14 = 168,337.48 : x - Step 2: Convert to fraction form
311,577.48/429,977.14 = 168,337.48/x - Step 3: Cross multiply
311,577.48x = 429,977.14 × 168,337.48 - Step 4: Simplify right side
311,577.48x = 72,381,268,205.21 - Step 5: Solve for x
x = 72,381,268,205.21/311,577.48 - Step 6: Final answer
x = 232,305.84
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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.