Finding the Fourth Proportional to 310,326.84, 428,251.32 and 176,190.84
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Solution
The fourth proportional to 310,326.84, 428,251.32 and 176,190.84 is: 243,143.52
Step by Step Solution
- Step 1: Write the proportion equation
310,326.84 : 428,251.32 = 176,190.84 : x - Step 2: Convert to fraction form
310,326.84/428,251.32 = 176,190.84/x - Step 3: Cross multiply
310,326.84x = 428,251.32 × 176,190.84 - Step 4: Simplify right side
310,326.84x = 75,453,959,801.91 - Step 5: Solve for x
x = 75,453,959,801.91/310,326.84 - Step 6: Final answer
x = 243,143.52
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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.