Finding the Fourth Proportional to 250,456.62, 345,665.58 and 154,994.07
Calculator
Solution
The fourth proportional to 250,456.62, 345,665.58 and 154,994.07 is: 213,913.75
Step by Step Solution
- Step 1: Write the proportion equation
250,456.62 : 345,665.58 = 154,994.07 : x - Step 2: Convert to fraction form
250,456.62/345,665.58 = 154,994.07/x - Step 3: Cross multiply
250,456.62x = 345,665.58 × 154,994.07 - Step 4: Simplify right side
250,456.62x = 53,576,115,103.11 - Step 5: Solve for x
x = 53,576,115,103.11/250,456.62 - Step 6: Final answer
x = 213,913.75
Related Problems
Find fourth proportional to 125,228.31, 172,832.79 and 77,497.04
Half scale
Find fourth proportional to 500,913.24, 691,331.16 and 309,988.14
Double scale
Find fourth proportional to 250,457.62, 345,666.96 and 154,995.07
Similar ratio
Find fourth proportional to 375,684.93, 518,498.37 and 232,491.11
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.