Finding the Fourth Proportional to 299,423.70, 449,135.55 and 133,211.70
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Solution
The fourth proportional to 299,423.70, 449,135.55 and 133,211.70 is: 199,817.55
Step by Step Solution
- Step 1: Write the proportion equation
299,423.70 : 449,135.55 = 133,211.70 : x - Step 2: Convert to fraction form
299,423.70/449,135.55 = 133,211.70/x - Step 3: Cross multiply
299,423.70x = 449,135.55 × 133,211.70 - Step 4: Simplify right side
299,423.70x = 59,830,110,145.94 - Step 5: Solve for x
x = 59,830,110,145.94/299,423.70 - Step 6: Final answer
x = 199,817.55
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1.5x scale
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.