Finding the Fourth Proportional to 306,093.70, 459,140.55 and 128,541.70
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Solution
The fourth proportional to 306,093.70, 459,140.55 and 128,541.70 is: 192,812.55
Step by Step Solution
- Step 1: Write the proportion equation
306,093.70 : 459,140.55 = 128,541.70 : x - Step 2: Convert to fraction form
306,093.70/459,140.55 = 128,541.70/x - Step 3: Cross multiply
306,093.70x = 459,140.55 × 128,541.70 - Step 4: Simplify right side
306,093.70x = 59,018,706,835.94 - Step 5: Solve for x
x = 59,018,706,835.94/306,093.70 - Step 6: Final answer
x = 192,812.55
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1.5x scale
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.