Finding the Fourth Proportional to 272,351.70, 408,527.55 and 139,187.70
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Solution
The fourth proportional to 272,351.70, 408,527.55 and 139,187.70 is: 208,781.55
Step by Step Solution
- Step 1: Write the proportion equation
272,351.70 : 408,527.55 = 139,187.70 : x - Step 2: Convert to fraction form
272,351.70/408,527.55 = 139,187.70/x - Step 3: Cross multiply
272,351.70x = 408,527.55 × 139,187.70 - Step 4: Simplify right side
272,351.70x = 56,862,010,071.14 - Step 5: Solve for x
x = 56,862,010,071.14/272,351.70 - Step 6: Final answer
x = 208,781.55
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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.