Finding the Fourth Proportional to 315,439.20, 473,158.80 and 203,464.80
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Solution
The fourth proportional to 315,439.20, 473,158.80 and 203,464.80 is: 305,197.20
Step by Step Solution
- Step 1: Write the proportion equation
315,439.20 : 473,158.80 = 203,464.80 : x - Step 2: Convert to fraction form
315,439.20/473,158.80 = 203,464.80/x - Step 3: Cross multiply
315,439.20x = 473,158.80 × 203,464.80 - Step 4: Simplify right side
315,439.20x = 96,271,160,610.24 - Step 5: Solve for x
x = 96,271,160,610.24/315,439.20 - Step 6: Final answer
x = 305,197.20
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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.