Finding the Fourth Proportional to 280,750.08, 387,435.29 and 153,425.68
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Solution
The fourth proportional to 280,750.08, 387,435.29 and 153,425.68 is: 211,727.54
Step by Step Solution
- Step 1: Write the proportion equation
280,750.08 : 387,435.29 = 153,425.68 : x - Step 2: Convert to fraction form
280,750.08/387,435.29 = 153,425.68/x - Step 3: Cross multiply
280,750.08x = 387,435.29 × 153,425.68 - Step 4: Simplify right side
280,750.08x = 59,442,522,057.12 - Step 5: Solve for x
x = 59,442,522,057.12/280,750.08 - Step 6: Final answer
x = 211,727.54
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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.