Finding the Fourth Proportional to 318,982.18, 440,147.37 and 181,139.62
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Solution
The fourth proportional to 318,982.18, 440,147.37 and 181,139.62 is: 249,945.40
Step by Step Solution
- Step 1: Write the proportion equation
318,982.18 : 440,147.37 = 181,139.62 : x - Step 2: Convert to fraction form
318,982.18/440,147.37 = 181,139.62/x - Step 3: Cross multiply
318,982.18x = 440,147.37 × 181,139.62 - Step 4: Simplify right side
318,982.18x = 79,728,127,345.80 - Step 5: Solve for x
x = 79,728,127,345.80/318,982.18 - Step 6: Final answer
x = 249,945.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.