Finding the Fourth Proportional to 170,431.05, 255,646.55 and 45,772.05
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Solution
The fourth proportional to 170,431.05, 255,646.55 and 45,772.05 is: 68,658.07
Step by Step Solution
- Step 1: Write the proportion equation
170,431.05 : 255,646.55 = 45,772.05 : x - Step 2: Convert to fraction form
170,431.05/255,646.55 = 45,772.05/x - Step 3: Cross multiply
170,431.05x = 255,646.55 × 45,772.05 - Step 4: Simplify right side
170,431.05x = 11,701,466,440.07 - Step 5: Solve for x
x = 11,701,466,440.07/170,431.05 - Step 6: Final answer
x = 68,658.07
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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.