Finding the Fourth Proportional to 252,931.36, 349,042.80 and 139,751.68
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Solution
The fourth proportional to 252,931.36, 349,042.80 and 139,751.68 is: 192,855.95
Step by Step Solution
- Step 1: Write the proportion equation
252,931.36 : 349,042.80 = 139,751.68 : x - Step 2: Convert to fraction form
252,931.36/349,042.80 = 139,751.68/x - Step 3: Cross multiply
252,931.36x = 349,042.80 × 139,751.68 - Step 4: Simplify right side
252,931.36x = 48,779,317,691.90 - Step 5: Solve for x
x = 48,779,317,691.90/252,931.36 - Step 6: Final answer
x = 192,855.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.