Finding the Fourth Proportional to 247.99, 371.84 and 117.91
Calculator
Solution
The fourth proportional to 247.99, 371.84 and 117.91 is: 176.80
Step by Step Solution
- Step 1: Write the proportion equation
247.99 : 371.84 = 117.91 : x - Step 2: Convert to fraction form
247.99/371.84 = 117.91/x - Step 3: Cross multiply
247.99x = 371.84 × 117.91 - Step 4: Simplify right side
247.99x = 43,843.65 - Step 5: Solve for x
x = 43,843.65/247.99 - Step 6: Final answer
x = 176.80
Related Problems
Find fourth proportional to 124.00, 185.92 and 58.96
Half scale
Find fourth proportional to 495.98, 743.68 and 235.82
Double scale
Find fourth proportional to 248.99, 373.34 and 118.91
Similar ratio
Find fourth proportional to 371.99, 557.76 and 176.87
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.