Finding the Fourth Proportional to 378,735.03, 522,665.28 and 208,980.09
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Solution
The fourth proportional to 378,735.03, 522,665.28 and 208,980.09 is: 288,398.56
Step by Step Solution
- Step 1: Write the proportion equation
378,735.03 : 522,665.28 = 208,980.09 : x - Step 2: Convert to fraction form
378,735.03/522,665.28 = 208,980.09/x - Step 3: Cross multiply
378,735.03x = 522,665.28 × 208,980.09 - Step 4: Simplify right side
378,735.03x = 109,226,637,646.38 - Step 5: Solve for x
x = 109,226,637,646.38/378,735.03 - Step 6: Final answer
x = 288,398.56
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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.