Finding the Fourth Proportional to 289,600.99, 434,420.93 and 79,240.75
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Solution
The fourth proportional to 289,600.99, 434,420.93 and 79,240.75 is: 118,866.45
Step by Step Solution
- Step 1: Write the proportion equation
289,600.99 : 434,420.93 = 79,240.75 : x - Step 2: Convert to fraction form
289,600.99/434,420.93 = 79,240.75/x - Step 3: Cross multiply
289,600.99x = 434,420.93 × 79,240.75 - Step 4: Simplify right side
289,600.99x = 34,423,840,308.90 - Step 5: Solve for x
x = 34,423,840,308.90/289,600.99 - Step 6: Final answer
x = 118,866.45
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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.