Finding the Fourth Proportional to 420,414.94, 580,184.94 and 229,440.70
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Solution
The fourth proportional to 420,414.94, 580,184.94 and 229,440.70 is: 316,634.89
Step by Step Solution
- Step 1: Write the proportion equation
420,414.94 : 580,184.94 = 229,440.70 : x - Step 2: Convert to fraction form
420,414.94/580,184.94 = 229,440.70/x - Step 3: Cross multiply
420,414.94x = 580,184.94 × 229,440.70 - Step 4: Simplify right side
420,414.94x = 133,118,038,763.06 - Step 5: Solve for x
x = 133,118,038,763.06/420,414.94 - Step 6: Final answer
x = 316,634.89
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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.