Finding the Fourth Proportional to 445,724.78, 615,130.74 and 252,132.68
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Solution
The fourth proportional to 445,724.78, 615,130.74 and 252,132.68 is: 347,960.38
Step by Step Solution
- Step 1: Write the proportion equation
445,724.78 : 615,130.74 = 252,132.68 : x - Step 2: Convert to fraction form
445,724.78/615,130.74 = 252,132.68/x - Step 3: Cross multiply
445,724.78x = 615,130.74 × 252,132.68 - Step 4: Simplify right side
445,724.78x = 155,094,563,564.41 - Step 5: Solve for x
x = 155,094,563,564.41/445,724.78 - Step 6: Final answer
x = 347,960.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.