Finding the Fourth Proportional to 306,140.70, 459,202.60 and 81,503.09
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Solution
The fourth proportional to 306,140.70, 459,202.60 and 81,503.09 is: 122,252.38
Step by Step Solution
- Step 1: Write the proportion equation
306,140.70 : 459,202.60 = 81,503.09 : x - Step 2: Convert to fraction form
306,140.70/459,202.60 = 81,503.09/x - Step 3: Cross multiply
306,140.70x = 459,202.60 × 81,503.09 - Step 4: Simplify right side
306,140.70x = 37,426,430,363.91 - Step 5: Solve for x
x = 37,426,430,363.91/306,140.70 - Step 6: Final answer
x = 122,252.38
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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.