Finding the Fourth Proportional to 372,400.13, 513,909.82 and 202,634.93
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Solution
The fourth proportional to 372,400.13, 513,909.82 and 202,634.93 is: 279,634.92
Step by Step Solution
- Step 1: Write the proportion equation
372,400.13 : 513,909.82 = 202,634.93 : x - Step 2: Convert to fraction form
372,400.13/513,909.82 = 202,634.93/x - Step 3: Cross multiply
372,400.13x = 513,909.82 × 202,634.93 - Step 4: Simplify right side
372,400.13x = 104,136,080,402.01 - Step 5: Solve for x
x = 104,136,080,402.01/372,400.13 - Step 6: Final answer
x = 279,634.92
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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.