Finding the Fourth Proportional to 318,879.44, 440,053.58 and 175,639.48
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Solution
The fourth proportional to 318,879.44, 440,053.58 and 175,639.48 is: 242,382.46
Step by Step Solution
- Step 1: Write the proportion equation
318,879.44 : 440,053.58 = 175,639.48 : x - Step 2: Convert to fraction form
318,879.44/440,053.58 = 175,639.48/x - Step 3: Cross multiply
318,879.44x = 440,053.58 × 175,639.48 - Step 4: Simplify right side
318,879.44x = 77,290,781,963.34 - Step 5: Solve for x
x = 77,290,781,963.34/318,879.44 - Step 6: Final answer
x = 242,382.46
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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.