Finding the Fourth Proportional to 306,689.60, 460,128.20 and 157,035.75
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Solution
The fourth proportional to 306,689.60, 460,128.20 and 157,035.75 is: 235,601.65
Step by Step Solution
- Step 1: Write the proportion equation
306,689.60 : 460,128.20 = 157,035.75 : x - Step 2: Convert to fraction form
306,689.60/460,128.20 = 157,035.75/x - Step 3: Cross multiply
306,689.60x = 460,128.20 × 157,035.75 - Step 4: Simplify right side
306,689.60x = 72,256,574,472.49 - Step 5: Solve for x
x = 72,256,574,472.49/306,689.60 - Step 6: Final answer
x = 235,601.65
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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.