Finding the Fourth Proportional to 420,358.67, 580,108.97 and 229,382.54
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Solution
The fourth proportional to 420,358.67, 580,108.97 and 229,382.54 is: 316,555.55
Step by Step Solution
- Step 1: Write the proportion equation
420,358.67 : 580,108.97 = 229,382.54 : x - Step 2: Convert to fraction form
420,358.67/580,108.97 = 229,382.54/x - Step 3: Cross multiply
420,358.67x = 580,108.97 × 229,382.54 - Step 4: Simplify right side
420,358.67x = 133,066,869,453.79 - Step 5: Solve for x
x = 133,066,869,453.79/420,358.67 - Step 6: Final answer
x = 316,555.55
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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.