Finding the Fourth Proportional to 202,880.70, 304,570.65 and 128,000.70
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Solution
The fourth proportional to 202,880.70, 304,570.65 and 128,000.70 is: 192,158.53
Step by Step Solution
- Step 1: Write the proportion equation
202,880.70 : 304,570.65 = 128,000.70 : x - Step 2: Convert to fraction form
202,880.70/304,570.65 = 128,000.70/x - Step 3: Cross multiply
202,880.70x = 304,570.65 × 128,000.70 - Step 4: Simplify right side
202,880.70x = 38,985,256,399.46 - Step 5: Solve for x
x = 38,985,256,399.46/202,880.70 - Step 6: Final answer
x = 192,158.53
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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.