Finding the Fourth Proportional to 320,487.74, 480,510.17 and 140,486.70
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Solution
The fourth proportional to 320,487.74, 480,510.17 and 140,486.70 is: 210,632.99
Step by Step Solution
- Step 1: Write the proportion equation
320,487.74 : 480,510.17 = 140,486.70 : x - Step 2: Convert to fraction form
320,487.74/480,510.17 = 140,486.70/x - Step 3: Cross multiply
320,487.74x = 480,510.17 × 140,486.70 - Step 4: Simplify right side
320,487.74x = 67,505,290,516.28 - Step 5: Solve for x
x = 67,505,290,516.28/320,487.74 - Step 6: Final answer
x = 210,632.99
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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.