Finding the Fourth Proportional to 205,121.16, 307,681.74 and 163,830.60
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Solution
The fourth proportional to 205,121.16, 307,681.74 and 163,830.60 is: 245,745.90
Step by Step Solution
- Step 1: Write the proportion equation
205,121.16 : 307,681.74 = 163,830.60 : x - Step 2: Convert to fraction form
205,121.16/307,681.74 = 163,830.60/x - Step 3: Cross multiply
205,121.16x = 307,681.74 × 163,830.60 - Step 4: Simplify right side
205,121.16x = 50,407,684,073.24 - Step 5: Solve for x
x = 50,407,684,073.24/205,121.16 - Step 6: Final answer
x = 245,745.90
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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.