Finding the Fourth Proportional to 311,758.64, 430,226.73 and 168,518.68
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Solution
The fourth proportional to 311,758.64, 430,226.73 and 168,518.68 is: 232,555.67
Step by Step Solution
- Step 1: Write the proportion equation
311,758.64 : 430,226.73 = 168,518.68 : x - Step 2: Convert to fraction form
311,758.64/430,226.73 = 168,518.68/x - Step 3: Cross multiply
311,758.64x = 430,226.73 × 168,518.68 - Step 4: Simplify right side
311,758.64x = 72,501,239,564.75 - Step 5: Solve for x
x = 72,501,239,564.75/311,758.64 - Step 6: Final answer
x = 232,555.67
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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.