Finding the Fourth Proportional to 312,948.15, 431,836.70 and 192,094.53
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Solution
The fourth proportional to 312,948.15, 431,836.70 and 192,094.53 is: 265,070.96
Step by Step Solution
- Step 1: Write the proportion equation
312,948.15 : 431,836.70 = 192,094.53 : x - Step 2: Convert to fraction form
312,948.15/431,836.70 = 192,094.53/x - Step 3: Cross multiply
312,948.15x = 431,836.70 × 192,094.53 - Step 4: Simplify right side
312,948.15x = 82,953,466,962.78 - Step 5: Solve for x
x = 82,953,466,962.78/312,948.15 - Step 6: Final answer
x = 265,070.96
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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.