Finding the Fourth Proportional to 306,077.20, 459,115.80 and 106,331.20
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Solution
The fourth proportional to 306,077.20, 459,115.80 and 106,331.20 is: 159,496.80
Step by Step Solution
- Step 1: Write the proportion equation
306,077.20 : 459,115.80 = 106,331.20 : x - Step 2: Convert to fraction form
306,077.20/459,115.80 = 106,331.20/x - Step 3: Cross multiply
306,077.20x = 459,115.80 × 106,331.20 - Step 4: Simplify right side
306,077.20x = 48,818,333,952.96 - Step 5: Solve for x
x = 48,818,333,952.96/306,077.20 - Step 6: Final answer
x = 159,496.80
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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.