Finding the Fourth Proportional to 367,979.13, 551,952.12 and 128,262.06
Calculator
Solution
The fourth proportional to 367,979.13, 551,952.12 and 128,262.06 is: 192,387.31
Step by Step Solution
- Step 1: Write the proportion equation
367,979.13 : 551,952.12 = 128,262.06 : x - Step 2: Convert to fraction form
367,979.13/551,952.12 = 128,262.06/x - Step 3: Cross multiply
367,979.13x = 551,952.12 × 128,262.06 - Step 4: Simplify right side
367,979.13x = 70,794,515,932.57 - Step 5: Solve for x
x = 70,794,515,932.57/367,979.13 - Step 6: Final answer
x = 192,387.31
Related Problems
Find fourth proportional to 183,989.57, 275,976.06 and 64,131.03
Half scale
Find fourth proportional to 735,958.26, 1,103,904.24 and 256,524.12
Double scale
Find fourth proportional to 367,980.13, 551,953.62 and 128,263.06
Similar ratio
Find fourth proportional to 551,968.70, 827,928.18 and 192,393.09
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.