Finding the Fourth Proportional to 272,579.71, 408,840.81 and 72,920.26
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Solution
The fourth proportional to 272,579.71, 408,840.81 and 72,920.26 is: 109,372.70
Step by Step Solution
- Step 1: Write the proportion equation
272,579.71 : 408,840.81 = 72,920.26 : x - Step 2: Convert to fraction form
272,579.71/408,840.81 = 72,920.26/x - Step 3: Cross multiply
272,579.71x = 408,840.81 × 72,920.26 - Step 4: Simplify right side
272,579.71x = 29,812,778,163.81 - Step 5: Solve for x
x = 29,812,778,163.81/272,579.71 - Step 6: Final answer
x = 109,372.70
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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.