Finding the Fourth Proportional to 180,390.21, 270,678.63 and 130,878.96
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Solution
The fourth proportional to 180,390.21, 270,678.63 and 130,878.96 is: 196,386.14
Step by Step Solution
- Step 1: Write the proportion equation
180,390.21 : 270,678.63 = 130,878.96 : x - Step 2: Convert to fraction form
180,390.21/270,678.63 = 130,878.96/x - Step 3: Cross multiply
180,390.21x = 270,678.63 × 130,878.96 - Step 4: Simplify right side
180,390.21x = 35,426,137,064.38 - Step 5: Solve for x
x = 35,426,137,064.38/180,390.21 - Step 6: Final answer
x = 196,386.14
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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.