Finding the Fourth Proportional to 276,021.30, 412,995.15 and 251,138.10
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Solution
The fourth proportional to 276,021.30, 412,995.15 and 251,138.10 is: 375,763.82
Step by Step Solution
- Step 1: Write the proportion equation
276,021.30 : 412,995.15 = 251,138.10 : x - Step 2: Convert to fraction form
276,021.30/412,995.15 = 251,138.10/x - Step 3: Cross multiply
276,021.30x = 412,995.15 × 251,138.10 - Step 4: Simplify right side
276,021.30x = 103,718,817,280.22 - Step 5: Solve for x
x = 103,718,817,280.22/276,021.30 - Step 6: Final answer
x = 375,763.82
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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.