Finding the Fourth Proportional to 311,405.63, 429,739.77 and 168,165.67
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Solution
The fourth proportional to 311,405.63, 429,739.77 and 168,165.67 is: 232,068.62
Step by Step Solution
- Step 1: Write the proportion equation
311,405.63 : 429,739.77 = 168,165.67 : x - Step 2: Convert to fraction form
311,405.63/429,739.77 = 168,165.67/x - Step 3: Cross multiply
311,405.63x = 429,739.77 × 168,165.67 - Step 4: Simplify right side
311,405.63x = 72,267,475,667.71 - Step 5: Solve for x
x = 72,267,475,667.71/311,405.63 - Step 6: Final answer
x = 232,068.62
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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.