Finding the Fourth Proportional to 240,190.23, 331,488.21 and 138,220.14
Calculator
Solution
The fourth proportional to 240,190.23, 331,488.21 and 138,220.14 is: 190,758.58
Step by Step Solution
- Step 1: Write the proportion equation
240,190.23 : 331,488.21 = 138,220.14 : x - Step 2: Convert to fraction form
240,190.23/331,488.21 = 138,220.14/x - Step 3: Cross multiply
240,190.23x = 331,488.21 × 138,220.14 - Step 4: Simplify right side
240,190.23x = 45,818,346,794.55 - Step 5: Solve for x
x = 45,818,346,794.55/240,190.23 - Step 6: Final answer
x = 190,758.58
Related Problems
Find fourth proportional to 120,095.12, 165,744.11 and 69,110.07
Half scale
Find fourth proportional to 480,380.46, 662,976.42 and 276,440.28
Double scale
Find fourth proportional to 240,191.23, 331,489.59 and 138,221.14
Similar ratio
Find fourth proportional to 360,285.35, 497,232.32 and 207,330.21
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.