Finding the Fourth Proportional to 439,610.55, 659,408.67 and 140,087.09
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Solution
The fourth proportional to 439,610.55, 659,408.67 and 140,087.09 is: 210,128.35
Step by Step Solution
- Step 1: Write the proportion equation
439,610.55 : 659,408.67 = 140,087.09 : x - Step 2: Convert to fraction form
439,610.55/659,408.67 = 140,087.09/x - Step 3: Cross multiply
439,610.55x = 659,408.67 × 140,087.09 - Step 4: Simplify right side
439,610.55x = 92,374,641,701.07 - Step 5: Solve for x
x = 92,374,641,701.07/439,610.55 - Step 6: Final answer
x = 210,128.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.