Finding the Fourth Proportional to 264,840.62, 365,487.12 and 143,990.06
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Solution
The fourth proportional to 264,840.62, 365,487.12 and 143,990.06 is: 198,710.12
Step by Step Solution
- Step 1: Write the proportion equation
264,840.62 : 365,487.12 = 143,990.06 : x - Step 2: Convert to fraction form
264,840.62/365,487.12 = 143,990.06/x - Step 3: Cross multiply
264,840.62x = 365,487.12 × 143,990.06 - Step 4: Simplify right side
264,840.62x = 52,626,510,510.59 - Step 5: Solve for x
x = 52,626,510,510.59/264,840.62 - Step 6: Final answer
x = 198,710.12
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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.