Finding the Fourth Proportional to 328,536.74, 492,616.49 and 128,623.07
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Solution
The fourth proportional to 328,536.74, 492,616.49 and 128,623.07 is: 192,860.76
Step by Step Solution
- Step 1: Write the proportion equation
328,536.74 : 492,616.49 = 128,623.07 : x - Step 2: Convert to fraction form
328,536.74/492,616.49 = 128,623.07/x - Step 3: Cross multiply
328,536.74x = 492,616.49 × 128,623.07 - Step 4: Simplify right side
328,536.74x = 63,361,845,864.85 - Step 5: Solve for x
x = 63,361,845,864.85/328,536.74 - Step 6: Final answer
x = 192,860.76
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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.