Finding the Fourth Proportional to 312,236.68, 430,897.05 and 191,354.61
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Solution
The fourth proportional to 312,236.68, 430,897.05 and 191,354.61 is: 264,075.75
Step by Step Solution
- Step 1: Write the proportion equation
312,236.68 : 430,897.05 = 191,354.61 : x - Step 2: Convert to fraction form
312,236.68/430,897.05 = 191,354.61/x - Step 3: Cross multiply
312,236.68x = 430,897.05 × 191,354.61 - Step 4: Simplify right side
312,236.68x = 82,454,136,952.90 - Step 5: Solve for x
x = 82,454,136,952.90/312,236.68 - Step 6: Final answer
x = 264,075.75
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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.