Finding the Fourth Proportional to 306,219.18, 459,226.57 and 128,693.10
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Solution
The fourth proportional to 306,219.18, 459,226.57 and 128,693.10 is: 192,996.70
Step by Step Solution
- Step 1: Write the proportion equation
306,219.18 : 459,226.57 = 128,693.10 : x - Step 2: Convert to fraction form
306,219.18/459,226.57 = 128,693.10/x - Step 3: Cross multiply
306,219.18x = 459,226.57 × 128,693.10 - Step 4: Simplify right side
306,219.18x = 59,099,290,895.67 - Step 5: Solve for x
x = 59,099,290,895.67/306,219.18 - Step 6: Final answer
x = 192,996.70
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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.