Finding the Fourth Proportional to 311,526.38, 467,289.51 and 74,869.05
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Solution
The fourth proportional to 311,526.38, 467,289.51 and 74,869.05 is: 112,303.56
Step by Step Solution
- Step 1: Write the proportion equation
311,526.38 : 467,289.51 = 74,869.05 : x - Step 2: Convert to fraction form
311,526.38/467,289.51 = 74,869.05/x - Step 3: Cross multiply
311,526.38x = 467,289.51 × 74,869.05 - Step 4: Simplify right side
311,526.38x = 34,985,521,688.67 - Step 5: Solve for x
x = 34,985,521,688.67/311,526.38 - Step 6: Final answer
x = 112,303.56
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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.