Finding the Fourth Proportional to 308,285.79, 425,454.24 and 172,320.21
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Solution
The fourth proportional to 308,285.79, 425,454.24 and 172,320.21 is: 237,812.99
Step by Step Solution
- Step 1: Write the proportion equation
308,285.79 : 425,454.24 = 172,320.21 : x - Step 2: Convert to fraction form
308,285.79/425,454.24 = 172,320.21/x - Step 3: Cross multiply
308,285.79x = 425,454.24 × 172,320.21 - Step 4: Simplify right side
308,285.79x = 73,314,363,982.19 - Step 5: Solve for x
x = 73,314,363,982.19/308,285.79 - Step 6: Final answer
x = 237,812.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.