Finding the Fourth Proportional to 276,043.07, 380,929.60 and 153,534.80
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Solution
The fourth proportional to 276,043.07, 380,929.60 and 153,534.80 is: 211,872.55
Step by Step Solution
- Step 1: Write the proportion equation
276,043.07 : 380,929.60 = 153,534.80 : x - Step 2: Convert to fraction form
276,043.07/380,929.60 = 153,534.80/x - Step 3: Cross multiply
276,043.07x = 380,929.60 × 153,534.80 - Step 4: Simplify right side
276,043.07x = 58,485,949,950.08 - Step 5: Solve for x
x = 58,485,949,950.08/276,043.07 - Step 6: Final answer
x = 211,872.55
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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.