Finding the Fourth Proportional to 276,929.84, 415,398.09 and 77,238.07
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Solution
The fourth proportional to 276,929.84, 415,398.09 and 77,238.07 is: 115,858.03
Step by Step Solution
- Step 1: Write the proportion equation
276,929.84 : 415,398.09 = 77,238.07 : x - Step 2: Convert to fraction form
276,929.84/415,398.09 = 77,238.07/x - Step 3: Cross multiply
276,929.84x = 415,398.09 × 77,238.07 - Step 4: Simplify right side
276,929.84x = 32,084,546,753.29 - Step 5: Solve for x
x = 32,084,546,753.29/276,929.84 - Step 6: Final answer
x = 115,858.03
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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.