Finding the Fourth Proportional to 329,970.18, 455,359.17 and 179,067.18
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Solution
The fourth proportional to 329,970.18, 455,359.17 and 179,067.18 is: 247,112.88
Step by Step Solution
- Step 1: Write the proportion equation
329,970.18 : 455,359.17 = 179,067.18 : x - Step 2: Convert to fraction form
329,970.18/455,359.17 = 179,067.18/x - Step 3: Cross multiply
329,970.18x = 455,359.17 × 179,067.18 - Step 4: Simplify right side
329,970.18x = 81,539,882,459.04 - Step 5: Solve for x
x = 81,539,882,459.04/329,970.18 - Step 6: Final answer
x = 247,112.88
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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.