Finding the Fourth Proportional to 280,882.42, 387,619.11 and 153,558.02
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Solution
The fourth proportional to 280,882.42, 387,619.11 and 153,558.02 is: 211,910.82
Step by Step Solution
- Step 1: Write the proportion equation
280,882.42 : 387,619.11 = 153,558.02 : x - Step 2: Convert to fraction form
280,882.42/387,619.11 = 153,558.02/x - Step 3: Cross multiply
280,882.42x = 387,619.11 × 153,558.02 - Step 4: Simplify right side
280,882.42x = 59,522,023,045.76 - Step 5: Solve for x
x = 59,522,023,045.76/280,882.42 - Step 6: Final answer
x = 211,910.82
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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.