Finding the Fourth Proportional to 208,087.80, 312,239.70 and 97,279.80
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Solution
The fourth proportional to 208,087.80, 312,239.70 and 97,279.80 is: 145,970.19
Step by Step Solution
- Step 1: Write the proportion equation
208,087.80 : 312,239.70 = 97,279.80 : x - Step 2: Convert to fraction form
208,087.80/312,239.70 = 97,279.80/x - Step 3: Cross multiply
208,087.80x = 312,239.70 × 97,279.80 - Step 4: Simplify right side
208,087.80x = 30,374,615,568.06 - Step 5: Solve for x
x = 30,374,615,568.06/208,087.80 - Step 6: Final answer
x = 145,970.19
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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.