Finding the Fourth Proportional to 319,076.20, 478,614.30 and 201,269.80
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Solution
The fourth proportional to 319,076.20, 478,614.30 and 201,269.80 is: 301,904.70
Step by Step Solution
- Step 1: Write the proportion equation
319,076.20 : 478,614.30 = 201,269.80 : x - Step 2: Convert to fraction form
319,076.20/478,614.30 = 201,269.80/x - Step 3: Cross multiply
319,076.20x = 478,614.30 × 201,269.80 - Step 4: Simplify right side
319,076.20x = 96,330,604,438.14 - Step 5: Solve for x
x = 96,330,604,438.14/319,076.20 - Step 6: Final answer
x = 301,904.70
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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.