Finding the Fourth Proportional to 208,122.80, 312,292.20 and 97,314.80
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Solution
The fourth proportional to 208,122.80, 312,292.20 and 97,314.80 is: 146,022.70
Step by Step Solution
- Step 1: Write the proportion equation
208,122.80 : 312,292.20 = 97,314.80 : x - Step 2: Convert to fraction form
208,122.80/312,292.20 = 97,314.80/x - Step 3: Cross multiply
208,122.80x = 312,292.20 × 97,314.80 - Step 4: Simplify right side
208,122.80x = 30,390,652,984.56 - Step 5: Solve for x
x = 30,390,652,984.56/208,122.80 - Step 6: Final answer
x = 146,022.70
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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.