Finding the Fourth Proportional to 368,122.40, 552,183.60 and 131,472.80
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Solution
The fourth proportional to 368,122.40, 552,183.60 and 131,472.80 is: 197,209.20
Step by Step Solution
- Step 1: Write the proportion equation
368,122.40 : 552,183.60 = 131,472.80 : x - Step 2: Convert to fraction form
368,122.40/552,183.60 = 131,472.80/x - Step 3: Cross multiply
368,122.40x = 552,183.60 × 131,472.80 - Step 4: Simplify right side
368,122.40x = 72,597,124,006.08 - Step 5: Solve for x
x = 72,597,124,006.08/368,122.40 - Step 6: Final answer
x = 197,209.20
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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.