Finding the Fourth Proportional to 318,905.60, 478,421.44 and 94,270.08
Calculator
Solution
The fourth proportional to 318,905.60, 478,421.44 and 94,270.08 is: 141,423.75
Step by Step Solution
- Step 1: Write the proportion equation
318,905.60 : 478,421.44 = 94,270.08 : x - Step 2: Convert to fraction form
318,905.60/478,421.44 = 94,270.08/x - Step 3: Cross multiply
318,905.60x = 478,421.44 × 94,270.08 - Step 4: Simplify right side
318,905.60x = 45,100,827,422.52 - Step 5: Solve for x
x = 45,100,827,422.52/318,905.60 - Step 6: Final answer
x = 141,423.75
Related Problems
Find fourth proportional to 159,452.80, 239,210.72 and 47,135.04
Half scale
Find fourth proportional to 637,811.20, 956,842.88 and 188,540.16
Double scale
Find fourth proportional to 318,906.60, 478,422.94 and 94,271.08
Similar ratio
Find fourth proportional to 478,358.40, 717,632.16 and 141,405.12
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.