Finding the Fourth Proportional to 292,912.65, 439,364.87 and 115,421.19
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Solution
The fourth proportional to 292,912.65, 439,364.87 and 115,421.19 is: 173,130.17
Step by Step Solution
- Step 1: Write the proportion equation
292,912.65 : 439,364.87 = 115,421.19 : x - Step 2: Convert to fraction form
292,912.65/439,364.87 = 115,421.19/x - Step 3: Cross multiply
292,912.65x = 439,364.87 × 115,421.19 - Step 4: Simplify right side
292,912.65x = 50,712,015,562.49 - Step 5: Solve for x
x = 50,712,015,562.49/292,912.65 - Step 6: Final answer
x = 173,130.17
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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.