Finding the Fourth Proportional to 420,364.89, 580,098.11 and 229,374.99
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Solution
The fourth proportional to 420,364.89, 580,098.11 and 229,374.99 is: 316,534.52
Step by Step Solution
- Step 1: Write the proportion equation
420,364.89 : 580,098.11 = 229,374.99 : x - Step 2: Convert to fraction form
420,364.89/580,098.11 = 229,374.99/x - Step 3: Cross multiply
420,364.89x = 580,098.11 × 229,374.99 - Step 4: Simplify right side
420,364.89x = 133,059,997,033.39 - Step 5: Solve for x
x = 133,059,997,033.39/420,364.89 - Step 6: Final answer
x = 316,534.52
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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.