Finding the Fourth Proportional to 378,352.94, 522,130.68 and 208,593.14
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Solution
The fourth proportional to 378,352.94, 522,130.68 and 208,593.14 is: 287,860.53
Step by Step Solution
- Step 1: Write the proportion equation
378,352.94 : 522,130.68 = 208,593.14 : x - Step 2: Convert to fraction form
378,352.94/522,130.68 = 208,593.14/x - Step 3: Cross multiply
378,352.94x = 522,130.68 × 208,593.14 - Step 4: Simplify right side
378,352.94x = 108,912,878,031.54 - Step 5: Solve for x
x = 108,912,878,031.54/378,352.94 - Step 6: Final answer
x = 287,860.53
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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.