Finding the Fourth Proportional to 272,626.10, 408,064.35 and 213,139.70
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Solution
The fourth proportional to 272,626.10, 408,064.35 and 213,139.70 is: 319,025.63
Step by Step Solution
- Step 1: Write the proportion equation
272,626.10 : 408,064.35 = 213,139.70 : x - Step 2: Convert to fraction form
272,626.10/408,064.35 = 213,139.70/x - Step 3: Cross multiply
272,626.10x = 408,064.35 × 213,139.70 - Step 4: Simplify right side
272,626.10x = 86,974,713,139.70 - Step 5: Solve for x
x = 86,974,713,139.70/272,626.10 - Step 6: Final answer
x = 319,025.63
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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.