Finding the Fourth Proportional to 276,978.30, 382,228.11 and 163,798.62
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Solution
The fourth proportional to 276,978.30, 382,228.11 and 163,798.62 is: 226,040.95
Step by Step Solution
- Step 1: Write the proportion equation
276,978.30 : 382,228.11 = 163,798.62 : x - Step 2: Convert to fraction form
276,978.30/382,228.11 = 163,798.62/x - Step 3: Cross multiply
276,978.30x = 382,228.11 × 163,798.62 - Step 4: Simplify right side
276,978.30x = 62,608,436,943.21 - Step 5: Solve for x
x = 62,608,436,943.21/276,978.30 - Step 6: Final answer
x = 226,040.95
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1.5x scale
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.