Finding the Fourth Proportional to 256,138.57, 353,438.63 and 142,966.09
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Solution
The fourth proportional to 256,138.57, 353,438.63 and 142,966.09 is: 197,275.01
Step by Step Solution
- Step 1: Write the proportion equation
256,138.57 : 353,438.63 = 142,966.09 : x - Step 2: Convert to fraction form
256,138.57/353,438.63 = 142,966.09/x - Step 3: Cross multiply
256,138.57x = 353,438.63 × 142,966.09 - Step 4: Simplify right side
256,138.57x = 50,529,738,271.23 - Step 5: Solve for x
x = 50,529,738,271.23/256,138.57 - Step 6: Final answer
x = 197,275.01
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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.