Finding the Fourth Proportional to 459,660.24, 689,490.36 and 144,141.75
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Solution
The fourth proportional to 459,660.24, 689,490.36 and 144,141.75 is: 216,212.63
Step by Step Solution
- Step 1: Write the proportion equation
459,660.24 : 689,490.36 = 144,141.75 : x - Step 2: Convert to fraction form
459,660.24/689,490.36 = 144,141.75/x - Step 3: Cross multiply
459,660.24x = 689,490.36 × 144,141.75 - Step 4: Simplify right side
459,660.24x = 99,384,347,098.53 - Step 5: Solve for x
x = 99,384,347,098.53/459,660.24 - Step 6: Final answer
x = 216,212.63
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1.5x scale
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.