Finding the Fourth Proportional to 354,719.42, 489,472.68 and 203,865.02
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Solution
The fourth proportional to 354,719.42, 489,472.68 and 203,865.02 is: 281,310.67
Step by Step Solution
- Step 1: Write the proportion equation
354,719.42 : 489,472.68 = 203,865.02 : x - Step 2: Convert to fraction form
354,719.42/489,472.68 = 203,865.02/x - Step 3: Cross multiply
354,719.42x = 489,472.68 × 203,865.02 - Step 4: Simplify right side
354,719.42x = 99,786,357,697.65 - Step 5: Solve for x
x = 99,786,357,697.65/354,719.42 - Step 6: Final answer
x = 281,310.67
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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.