Finding the Fourth Proportional to 328,643.10, 493,159.05 and 239,672.70
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Solution
The fourth proportional to 328,643.10, 493,159.05 and 239,672.70 is: 359,650.82
Step by Step Solution
- Step 1: Write the proportion equation
328,643.10 : 493,159.05 = 239,672.70 : x - Step 2: Convert to fraction form
328,643.10/493,159.05 = 239,672.70/x - Step 3: Cross multiply
328,643.10x = 493,159.05 × 239,672.70 - Step 4: Simplify right side
328,643.10x = 118,196,761,042.94 - Step 5: Solve for x
x = 118,196,761,042.94/328,643.10 - Step 6: Final answer
x = 359,650.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.