Finding the Fourth Proportional to 382,897.62, 528,389.46 and 239,736.60
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Solution
The fourth proportional to 382,897.62, 528,389.46 and 239,736.60 is: 330,830.71
Step by Step Solution
- Step 1: Write the proportion equation
382,897.62 : 528,389.46 = 239,736.60 : x - Step 2: Convert to fraction form
382,897.62/528,389.46 = 239,736.60/x - Step 3: Cross multiply
382,897.62x = 528,389.46 × 239,736.60 - Step 4: Simplify right side
382,897.62x = 126,674,292,616.24 - Step 5: Solve for x
x = 126,674,292,616.24/382,897.62 - Step 6: Final answer
x = 330,830.71
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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.