Finding the Fourth Proportional to 272,564.46, 408,817.94 and 72,905.00
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Solution
The fourth proportional to 272,564.46, 408,817.94 and 72,905.00 is: 109,349.80
Step by Step Solution
- Step 1: Write the proportion equation
272,564.46 : 408,817.94 = 72,905.00 : x - Step 2: Convert to fraction form
272,564.46/408,817.94 = 72,905.00/x - Step 3: Cross multiply
272,564.46x = 408,817.94 × 72,905.00 - Step 4: Simplify right side
272,564.46x = 29,804,869,507.09 - Step 5: Solve for x
x = 29,804,869,507.09/272,564.46 - Step 6: Final answer
x = 109,349.80
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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.