Finding the Fourth Proportional to 488,356.20, 732,315.60 and 221,979.60
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Solution
The fourth proportional to 488,356.20, 732,315.60 and 221,979.60 is: 332,869.99
Step by Step Solution
- Step 1: Write the proportion equation
488,356.20 : 732,315.60 = 221,979.60 : x - Step 2: Convert to fraction form
488,356.20/732,315.60 = 221,979.60/x - Step 3: Cross multiply
488,356.20x = 732,315.60 × 221,979.60 - Step 4: Simplify right side
488,356.20x = 162,559,123,961.76 - Step 5: Solve for x
x = 162,559,123,961.76/488,356.20 - Step 6: Final answer
x = 332,869.99
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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.