Finding the Fourth Proportional to 210,239.76, 290,128.60 and 114,745.68
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Solution
The fourth proportional to 210,239.76, 290,128.60 and 114,745.68 is: 158,347.80
Step by Step Solution
- Step 1: Write the proportion equation
210,239.76 : 290,128.60 = 114,745.68 : x - Step 2: Convert to fraction form
210,239.76/290,128.60 = 114,745.68/x - Step 3: Cross multiply
210,239.76x = 290,128.60 × 114,745.68 - Step 4: Simplify right side
210,239.76x = 33,291,003,494.45 - Step 5: Solve for x
x = 33,291,003,494.45/210,239.76 - Step 6: Final answer
x = 158,347.80
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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.