Finding the Fourth Proportional to 253,572.99, 349,934.68 and 138,849.72
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Solution
The fourth proportional to 253,572.99, 349,934.68 and 138,849.72 is: 191,614.78
Step by Step Solution
- Step 1: Write the proportion equation
253,572.99 : 349,934.68 = 138,849.72 : x - Step 2: Convert to fraction form
253,572.99/349,934.68 = 138,849.72/x - Step 3: Cross multiply
253,572.99x = 349,934.68 × 138,849.72 - Step 4: Simplify right side
253,572.99x = 48,588,332,336.29 - Step 5: Solve for x
x = 48,588,332,336.29/253,572.99 - Step 6: Final answer
x = 191,614.78
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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.