Finding the Fourth Proportional to 270,312.19, 405,343.49 and 99,491.00
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Solution
The fourth proportional to 270,312.19, 405,343.49 and 99,491.00 is: 149,190.56
Step by Step Solution
- Step 1: Write the proportion equation
270,312.19 : 405,343.49 = 99,491.00 : x - Step 2: Convert to fraction form
270,312.19/405,343.49 = 99,491.00/x - Step 3: Cross multiply
270,312.19x = 405,343.49 × 99,491.00 - Step 4: Simplify right side
270,312.19x = 40,328,028,032.79 - Step 5: Solve for x
x = 40,328,028,032.79/270,312.19 - Step 6: Final answer
x = 149,190.56
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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.