Finding the Fourth Proportional to 155,353.68, 214,386.03 and 87,370.64
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Solution
The fourth proportional to 155,353.68, 214,386.03 and 87,370.64 is: 120,570.32
Step by Step Solution
- Step 1: Write the proportion equation
155,353.68 : 214,386.03 = 87,370.64 : x - Step 2: Convert to fraction form
155,353.68/214,386.03 = 87,370.64/x - Step 3: Cross multiply
155,353.68x = 214,386.03 × 87,370.64 - Step 4: Simplify right side
155,353.68x = 18,731,043,576.23 - Step 5: Solve for x
x = 18,731,043,576.23/155,353.68 - Step 6: Final answer
x = 120,570.32
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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.