Finding the Fourth Proportional to 352,616.80, 528,817.20 and 115,904.80
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Solution
The fourth proportional to 352,616.80, 528,817.20 and 115,904.80 is: 173,821.70
Step by Step Solution
- Step 1: Write the proportion equation
352,616.80 : 528,817.20 = 115,904.80 : x - Step 2: Convert to fraction form
352,616.80/528,817.20 = 115,904.80/x - Step 3: Cross multiply
352,616.80x = 528,817.20 × 115,904.80 - Step 4: Simplify right side
352,616.80x = 61,292,451,802.56 - Step 5: Solve for x
x = 61,292,451,802.56/352,616.80 - Step 6: Final answer
x = 173,821.70
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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.