Finding the Fourth Proportional to 420,531.24, 580,312.84 and 239,226.11
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Solution
The fourth proportional to 420,531.24, 580,312.84 and 239,226.11 is: 330,120.49
Step by Step Solution
- Step 1: Write the proportion equation
420,531.24 : 580,312.84 = 239,226.11 : x - Step 2: Convert to fraction form
420,531.24/580,312.84 = 239,226.11/x - Step 3: Cross multiply
420,531.24x = 580,312.84 × 239,226.11 - Step 4: Simplify right side
420,531.24x = 138,825,979,198.56 - Step 5: Solve for x
x = 138,825,979,198.56/420,531.24 - Step 6: Final answer
x = 330,120.49
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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.