Finding the Fourth Proportional to 420,423.14, 580,183.78 and 229,436.53
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Solution
The fourth proportional to 420,423.14, 580,183.78 and 229,436.53 is: 316,622.33
Step by Step Solution
- Step 1: Write the proportion equation
420,423.14 : 580,183.78 = 229,436.53 : x - Step 2: Convert to fraction form
420,423.14/580,183.78 = 229,436.53/x - Step 3: Cross multiply
420,423.14x = 580,183.78 × 229,436.53 - Step 4: Simplify right side
420,423.14x = 133,115,352,098.30 - Step 5: Solve for x
x = 133,115,352,098.30/420,423.14 - Step 6: Final answer
x = 316,622.33
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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.