Finding the Fourth Proportional to 460,191.49, 690,056.21 and 268,128.09
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Solution
The fourth proportional to 460,191.49, 690,056.21 and 268,128.09 is: 402,057.53
Step by Step Solution
- Step 1: Write the proportion equation
460,191.49 : 690,056.21 = 268,128.09 : x - Step 2: Convert to fraction form
460,191.49/690,056.21 = 268,128.09/x - Step 3: Cross multiply
460,191.49x = 690,056.21 × 268,128.09 - Step 4: Simplify right side
460,191.49x = 185,023,454,250.26 - Step 5: Solve for x
x = 185,023,454,250.26/460,191.49 - Step 6: Final answer
x = 402,057.53
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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.