Finding the Fourth Proportional to 284,579.76, 392,785.54 and 163,790.80
Calculator
Solution
The fourth proportional to 284,579.76, 392,785.54 and 163,790.80 is: 226,068.99
Step by Step Solution
- Step 1: Write the proportion equation
284,579.76 : 392,785.54 = 163,790.80 : x - Step 2: Convert to fraction form
284,579.76/392,785.54 = 163,790.80/x - Step 3: Cross multiply
284,579.76x = 392,785.54 × 163,790.80 - Step 4: Simplify right side
284,579.76x = 64,334,657,825.03 - Step 5: Solve for x
x = 64,334,657,825.03/284,579.76 - Step 6: Final answer
x = 226,068.99
Related Problems
Find fourth proportional to 142,289.88, 196,392.77 and 81,895.40
Half scale
Find fourth proportional to 569,159.52, 785,571.08 and 327,581.60
Double scale
Find fourth proportional to 284,580.76, 392,786.92 and 163,791.80
Similar ratio
Find fourth proportional to 426,869.64, 589,178.31 and 245,686.20
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.