Finding the Fourth Proportional to 472,775.70, 709,163.55 and 140,351.70
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Solution
The fourth proportional to 472,775.70, 709,163.55 and 140,351.70 is: 210,527.55
Step by Step Solution
- Step 1: Write the proportion equation
472,775.70 : 709,163.55 = 140,351.70 : x - Step 2: Convert to fraction form
472,775.70/709,163.55 = 140,351.70/x - Step 3: Cross multiply
472,775.70x = 709,163.55 × 140,351.70 - Step 4: Simplify right side
472,775.70x = 99,532,309,820.54 - Step 5: Solve for x
x = 99,532,309,820.54/472,775.70 - Step 6: Final answer
x = 210,527.55
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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.