Finding the Fourth Proportional to 402,591.20, 603,959.70 and 202,407.80
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Solution
The fourth proportional to 402,591.20, 603,959.70 and 202,407.80 is: 303,648.35
Step by Step Solution
- Step 1: Write the proportion equation
402,591.20 : 603,959.70 = 202,407.80 : x - Step 2: Convert to fraction form
402,591.20/603,959.70 = 202,407.80/x - Step 3: Cross multiply
402,591.20x = 603,959.70 × 202,407.80 - Step 4: Simplify right side
402,591.20x = 122,246,154,165.66 - Step 5: Solve for x
x = 122,246,154,165.66/402,591.20 - Step 6: Final answer
x = 303,648.35
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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.