Finding the Fourth Proportional to 280,923.62, 387,674.58 and 153,599.21
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Solution
The fourth proportional to 280,923.62, 387,674.58 and 153,599.21 is: 211,966.90
Step by Step Solution
- Step 1: Write the proportion equation
280,923.62 : 387,674.58 = 153,599.21 : x - Step 2: Convert to fraction form
280,923.62/387,674.58 = 153,599.21/x - Step 3: Cross multiply
280,923.62x = 387,674.58 × 153,599.21 - Step 4: Simplify right side
280,923.62x = 59,546,507,286.71 - Step 5: Solve for x
x = 59,546,507,286.71/280,923.62 - Step 6: Final answer
x = 211,966.90
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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.