Finding the Fourth Proportional to 399,979.28, 599,968.96 and 160,202.07
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Solution
The fourth proportional to 399,979.28, 599,968.96 and 160,202.07 is: 240,303.12
Step by Step Solution
- Step 1: Write the proportion equation
399,979.28 : 599,968.96 = 160,202.07 : x - Step 2: Convert to fraction form
399,979.28/599,968.96 = 160,202.07/x - Step 3: Cross multiply
399,979.28x = 599,968.96 × 160,202.07 - Step 4: Simplify right side
399,979.28x = 96,116,268,927.24 - Step 5: Solve for x
x = 96,116,268,927.24/399,979.28 - Step 6: Final answer
x = 240,303.12
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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.