Finding the Fourth Proportional to 204,497.80, 306,746.70 and 129,702.40
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Solution
The fourth proportional to 204,497.80, 306,746.70 and 129,702.40 is: 194,553.60
Step by Step Solution
- Step 1: Write the proportion equation
204,497.80 : 306,746.70 = 129,702.40 : x - Step 2: Convert to fraction form
204,497.80/306,746.70 = 129,702.40/x - Step 3: Cross multiply
204,497.80x = 306,746.70 × 129,702.40 - Step 4: Simplify right side
204,497.80x = 39,785,783,182.08 - Step 5: Solve for x
x = 39,785,783,182.08/204,497.80 - Step 6: Final answer
x = 194,553.60
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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.