Finding the Fourth Proportional to 409,159.24, 613,651.36 and 128,610.88
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Solution
The fourth proportional to 409,159.24, 613,651.36 and 128,610.88 is: 192,888.82
Step by Step Solution
- Step 1: Write the proportion equation
409,159.24 : 613,651.36 = 128,610.88 : x - Step 2: Convert to fraction form
409,159.24/613,651.36 = 128,610.88/x - Step 3: Cross multiply
409,159.24x = 613,651.36 × 128,610.88 - Step 4: Simplify right side
409,159.24x = 78,922,241,422.80 - Step 5: Solve for x
x = 78,922,241,422.80/409,159.24 - Step 6: Final answer
x = 192,888.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.