Finding the Fourth Proportional to 260,120.17, 390,180.21 and 73,131.67
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Solution
The fourth proportional to 260,120.17, 390,180.21 and 73,131.67 is: 109,697.49
Step by Step Solution
- Step 1: Write the proportion equation
260,120.17 : 390,180.21 = 73,131.67 : x - Step 2: Convert to fraction form
260,120.17/390,180.21 = 73,131.67/x - Step 3: Cross multiply
260,120.17x = 390,180.21 × 73,131.67 - Step 4: Simplify right side
260,120.17x = 28,534,530,358.25 - Step 5: Solve for x
x = 28,534,530,358.25/260,120.17 - Step 6: Final answer
x = 109,697.49
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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.