Finding the Fourth Proportional to 257,752.26, 355,697.64 and 143,048.52
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Solution
The fourth proportional to 257,752.26, 355,697.64 and 143,048.52 is: 197,406.69
Step by Step Solution
- Step 1: Write the proportion equation
257,752.26 : 355,697.64 = 143,048.52 : x - Step 2: Convert to fraction form
257,752.26/355,697.64 = 143,048.52/x - Step 3: Cross multiply
257,752.26x = 355,697.64 × 143,048.52 - Step 4: Simplify right side
257,752.26x = 50,882,020,969.49 - Step 5: Solve for x
x = 50,882,020,969.49/257,752.26 - Step 6: Final answer
x = 197,406.69
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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.