Finding the Fourth Proportional to 268,471.58, 370,485.63 and 147,611.70
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Solution
The fourth proportional to 268,471.58, 370,485.63 and 147,611.70 is: 203,701.32
Step by Step Solution
- Step 1: Write the proportion equation
268,471.58 : 370,485.63 = 147,611.70 : x - Step 2: Convert to fraction form
268,471.58/370,485.63 = 147,611.70/x - Step 3: Cross multiply
268,471.58x = 370,485.63 × 147,611.70 - Step 4: Simplify right side
268,471.58x = 54,688,013,669.87 - Step 5: Solve for x
x = 54,688,013,669.87/268,471.58 - Step 6: Final answer
x = 203,701.32
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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.