Finding the Fourth Proportional to 212,915.70, 319,373.55 and 177,923.70
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Solution
The fourth proportional to 212,915.70, 319,373.55 and 177,923.70 is: 266,885.55
Step by Step Solution
- Step 1: Write the proportion equation
212,915.70 : 319,373.55 = 177,923.70 : x - Step 2: Convert to fraction form
212,915.70/319,373.55 = 177,923.70/x - Step 3: Cross multiply
212,915.70x = 319,373.55 × 177,923.70 - Step 4: Simplify right side
212,915.70x = 56,824,123,698.14 - Step 5: Solve for x
x = 56,824,123,698.14/212,915.70 - Step 6: Final answer
x = 266,885.55
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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.