Finding the Fourth Proportional to 420,535.44, 580,333.82 and 239,246.97
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Solution
The fourth proportional to 420,535.44, 580,333.82 and 239,246.97 is: 330,157.92
Step by Step Solution
- Step 1: Write the proportion equation
420,535.44 : 580,333.82 = 239,246.97 : x - Step 2: Convert to fraction form
420,535.44/580,333.82 = 239,246.97/x - Step 3: Cross multiply
420,535.44x = 580,333.82 × 239,246.97 - Step 4: Simplify right side
420,535.44x = 138,843,106,827.29 - Step 5: Solve for x
x = 138,843,106,827.29/420,535.44 - Step 6: Final answer
x = 330,157.92
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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.