Finding the Fourth Proportional to 420,225.19, 579,912.48 and 229,242.58
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Solution
The fourth proportional to 420,225.19, 579,912.48 and 229,242.58 is: 316,355.70
Step by Step Solution
- Step 1: Write the proportion equation
420,225.19 : 579,912.48 = 229,242.58 : x - Step 2: Convert to fraction form
420,225.19/579,912.48 = 229,242.58/x - Step 3: Cross multiply
420,225.19x = 579,912.48 × 229,242.58 - Step 4: Simplify right side
420,225.19x = 132,940,631,639.62 - Step 5: Solve for x
x = 132,940,631,639.62/420,225.19 - Step 6: Final answer
x = 316,355.70
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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.