Finding the Fourth Proportional to 280,563.22, 387,177.24 and 153,239.12
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Solution
The fourth proportional to 280,563.22, 387,177.24 and 153,239.12 is: 211,469.98
Step by Step Solution
- Step 1: Write the proportion equation
280,563.22 : 387,177.24 = 153,239.12 : x - Step 2: Convert to fraction form
280,563.22/387,177.24 = 153,239.12/x - Step 3: Cross multiply
280,563.22x = 387,177.24 × 153,239.12 - Step 4: Simplify right side
280,563.22x = 59,330,699,541.63 - Step 5: Solve for x
x = 59,330,699,541.63/280,563.22 - Step 6: Final answer
x = 211,469.98
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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.