Finding the Fourth Proportional to 323,591.16, 485,353.94 and 86,903.09
Calculator
Solution
The fourth proportional to 323,591.16, 485,353.94 and 86,903.09 is: 130,345.82
Step by Step Solution
- Step 1: Write the proportion equation
323,591.16 : 485,353.94 = 86,903.09 : x - Step 2: Convert to fraction form
323,591.16/485,353.94 = 86,903.09/x - Step 3: Cross multiply
323,591.16x = 485,353.94 × 86,903.09 - Step 4: Simplify right side
323,591.16x = 42,178,754,268.39 - Step 5: Solve for x
x = 42,178,754,268.39/323,591.16 - Step 6: Final answer
x = 130,345.82
Related Problems
Find fourth proportional to 161,795.58, 242,676.97 and 43,451.54
Half scale
Find fourth proportional to 647,182.32, 970,707.87 and 173,806.17
Double scale
Find fourth proportional to 323,592.16, 485,355.43 and 86,904.09
Similar ratio
Find fourth proportional to 485,386.74, 728,030.90 and 130,354.63
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.