Finding the Fourth Proportional to 253,200.99, 349,403.20 and 138,456.88
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Solution
The fourth proportional to 253,200.99, 349,403.20 and 138,456.88 is: 191,062.75
Step by Step Solution
- Step 1: Write the proportion equation
253,200.99 : 349,403.20 = 138,456.88 : x - Step 2: Convert to fraction form
253,200.99/349,403.20 = 138,456.88/x - Step 3: Cross multiply
253,200.99x = 349,403.20 × 138,456.88 - Step 4: Simplify right side
253,200.99x = 48,377,276,934.02 - Step 5: Solve for x
x = 48,377,276,934.02/253,200.99 - Step 6: Final answer
x = 191,062.75
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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.