Finding the Fourth Proportional to 257,036.99, 354,715.76 and 143,859.47
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Solution
The fourth proportional to 257,036.99, 354,715.76 and 143,859.47 is: 198,528.70
Step by Step Solution
- Step 1: Write the proportion equation
257,036.99 : 354,715.76 = 143,859.47 : x - Step 2: Convert to fraction form
257,036.99/354,715.76 = 143,859.47/x - Step 3: Cross multiply
257,036.99x = 354,715.76 × 143,859.47 - Step 4: Simplify right side
257,036.99x = 51,029,220,514.95 - Step 5: Solve for x
x = 51,029,220,514.95/257,036.99 - Step 6: Final answer
x = 198,528.70
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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.