Finding the Fourth Proportional to 459,809.61, 689,718.28 and 160,289.63
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Solution
The fourth proportional to 459,809.61, 689,718.28 and 160,289.63 is: 240,435.79
Step by Step Solution
- Step 1: Write the proportion equation
459,809.61 : 689,718.28 = 160,289.63 : x - Step 2: Convert to fraction form
459,809.61/689,718.28 = 160,289.63/x - Step 3: Cross multiply
459,809.61x = 689,718.28 × 160,289.63 - Step 4: Simplify right side
459,809.61x = 110,554,687,905.44 - Step 5: Solve for x
x = 110,554,687,905.44/459,809.61 - Step 6: Final answer
x = 240,435.79
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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.