Finding the Fourth Proportional to 230,528.41, 318,130.60 and 128,560.32
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Solution
The fourth proportional to 230,528.41, 318,130.60 and 128,560.32 is: 177,414.02
Step by Step Solution
- Step 1: Write the proportion equation
230,528.41 : 318,130.60 = 128,560.32 : x - Step 2: Convert to fraction form
230,528.41/318,130.60 = 128,560.32/x - Step 3: Cross multiply
230,528.41x = 318,130.60 × 128,560.32 - Step 4: Simplify right side
230,528.41x = 40,898,971,737.79 - Step 5: Solve for x
x = 40,898,971,737.79/230,528.41 - Step 6: Final answer
x = 177,414.02
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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.