Finding the Fourth Proportional to 304,732.13, 420,390.77 and 197,336.79
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Solution
The fourth proportional to 304,732.13, 420,390.77 and 197,336.79 is: 272,234.39
Step by Step Solution
- Step 1: Write the proportion equation
304,732.13 : 420,390.77 = 197,336.79 : x - Step 2: Convert to fraction form
304,732.13/420,390.77 = 197,336.79/x - Step 3: Cross multiply
304,732.13x = 420,390.77 × 197,336.79 - Step 4: Simplify right side
304,732.13x = 82,958,564,110.74 - Step 5: Solve for x
x = 82,958,564,110.74/304,732.13 - Step 6: Final answer
x = 272,234.39
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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.