Finding the Fourth Proportional to 381,465.99, 526,412.66 and 209,383.71
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Solution
The fourth proportional to 381,465.99, 526,412.66 and 209,383.71 is: 288,943.81
Step by Step Solution
- Step 1: Write the proportion equation
381,465.99 : 526,412.66 = 209,383.71 : x - Step 2: Convert to fraction form
381,465.99/526,412.66 = 209,383.71/x - Step 3: Cross multiply
381,465.99x = 526,412.66 × 209,383.71 - Step 4: Simplify right side
381,465.99x = 110,222,234,694.85 - Step 5: Solve for x
x = 110,222,234,694.85/381,465.99 - Step 6: Final answer
x = 288,943.81
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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.