Finding the Fourth Proportional to 410,311.80, 615,122.10 and 213,319.80
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Solution
The fourth proportional to 410,311.80, 615,122.10 and 213,319.80 is: 319,800.02
Step by Step Solution
- Step 1: Write the proportion equation
410,311.80 : 615,122.10 = 213,319.80 : x - Step 2: Convert to fraction form
410,311.80/615,122.10 = 213,319.80/x - Step 3: Cross multiply
410,311.80x = 615,122.10 × 213,319.80 - Step 4: Simplify right side
410,311.80x = 131,217,723,347.58 - Step 5: Solve for x
x = 131,217,723,347.58/410,311.80 - Step 6: Final answer
x = 319,800.02
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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.