Finding the Fourth Proportional to 479,072.18, 718,485.68 and 142,034.02
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Solution
The fourth proportional to 479,072.18, 718,485.68 and 142,034.02 is: 213,014.68
Step by Step Solution
- Step 1: Write the proportion equation
479,072.18 : 718,485.68 = 142,034.02 : x - Step 2: Convert to fraction form
479,072.18/718,485.68 = 142,034.02/x - Step 3: Cross multiply
479,072.18x = 718,485.68 × 142,034.02 - Step 4: Simplify right side
479,072.18x = 102,049,409,442.83 - Step 5: Solve for x
x = 102,049,409,442.83/479,072.18 - Step 6: Final answer
x = 213,014.68
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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.