Finding the Fourth Proportional to 238,765.14, 329,479.65 and 138,178.26
Calculator
Solution
The fourth proportional to 238,765.14, 329,479.65 and 138,178.26 is: 190,676.60
Step by Step Solution
- Step 1: Write the proportion equation
238,765.14 : 329,479.65 = 138,178.26 : x - Step 2: Convert to fraction form
238,765.14/329,479.65 = 138,178.26/x - Step 3: Cross multiply
238,765.14x = 329,479.65 × 138,178.26 - Step 4: Simplify right side
238,765.14x = 45,526,924,742.41 - Step 5: Solve for x
x = 45,526,924,742.41/238,765.14 - Step 6: Final answer
x = 190,676.60
Related Problems
Find fourth proportional to 119,382.57, 164,739.83 and 69,089.13
Half scale
Find fourth proportional to 477,530.28, 658,959.30 and 276,356.52
Double scale
Find fourth proportional to 238,766.14, 329,481.03 and 138,179.26
Similar ratio
Find fourth proportional to 358,147.71, 494,219.48 and 207,267.39
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.