Finding the Fourth Proportional to 399,201.40, 597,995.70 and 248,980.60
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Solution
The fourth proportional to 399,201.40, 597,995.70 and 248,980.60 is: 372,967.95
Step by Step Solution
- Step 1: Write the proportion equation
399,201.40 : 597,995.70 = 248,980.60 : x - Step 2: Convert to fraction form
399,201.40/597,995.70 = 248,980.60/x - Step 3: Cross multiply
399,201.40x = 597,995.70 × 248,980.60 - Step 4: Simplify right side
399,201.40x = 148,889,328,183.42 - Step 5: Solve for x
x = 148,889,328,183.42/399,201.40 - Step 6: Final answer
x = 372,967.95
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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.