Finding the Fourth Proportional to 381,423.42, 572,138.01 and 176,239.08
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Solution
The fourth proportional to 381,423.42, 572,138.01 and 176,239.08 is: 264,359.95
Step by Step Solution
- Step 1: Write the proportion equation
381,423.42 : 572,138.01 = 176,239.08 : x - Step 2: Convert to fraction form
381,423.42/572,138.01 = 176,239.08/x - Step 3: Cross multiply
381,423.42x = 572,138.01 × 176,239.08 - Step 4: Simplify right side
381,423.42x = 100,833,076,515.43 - Step 5: Solve for x
x = 100,833,076,515.43/381,423.42 - Step 6: Final answer
x = 264,359.95
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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.