Finding the Fourth Proportional to 212,701.21, 318,750.90 and 117,973.06
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Solution
The fourth proportional to 212,701.21, 318,750.90 and 117,973.06 is: 176,792.69
Step by Step Solution
- Step 1: Write the proportion equation
212,701.21 : 318,750.90 = 117,973.06 : x - Step 2: Convert to fraction form
212,701.21/318,750.90 = 117,973.06/x - Step 3: Cross multiply
212,701.21x = 318,750.90 × 117,973.06 - Step 4: Simplify right side
212,701.21x = 37,604,019,050.75 - Step 5: Solve for x
x = 37,604,019,050.75/212,701.21 - Step 6: Final answer
x = 176,792.69
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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.