Finding the Fourth Proportional to 191,465.08, 288,631.09 and 178,620.10
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Solution
The fourth proportional to 191,465.08, 288,631.09 and 178,620.10 is: 269,267.45
Step by Step Solution
- Step 1: Write the proportion equation
191,465.08 : 288,631.09 = 178,620.10 : x - Step 2: Convert to fraction form
191,465.08/288,631.09 = 178,620.10/x - Step 3: Cross multiply
191,465.08x = 288,631.09 × 178,620.10 - Step 4: Simplify right side
191,465.08x = 51,555,314,158.91 - Step 5: Solve for x
x = 51,555,314,158.91/191,465.08 - Step 6: Final answer
x = 269,267.45
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.