Finding the Fourth Proportional to 316,220.76, 474,506.10 and 129,363.48
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Solution
The fourth proportional to 316,220.76, 474,506.10 and 129,363.48 is: 194,116.79
Step by Step Solution
- Step 1: Write the proportion equation
316,220.76 : 474,506.10 = 129,363.48 : x - Step 2: Convert to fraction form
316,220.76/474,506.10 = 129,363.48/x - Step 3: Cross multiply
316,220.76x = 474,506.10 × 129,363.48 - Step 4: Simplify right side
316,220.76x = 61,383,760,377.23 - Step 5: Solve for x
x = 61,383,760,377.23/316,220.76 - Step 6: Final answer
x = 194,116.79
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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.