Finding the Fourth Proportional to 360,126.99, 540,217.82 and 107,387.70
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Solution
The fourth proportional to 360,126.99, 540,217.82 and 107,387.70 is: 161,089.70
Step by Step Solution
- Step 1: Write the proportion equation
360,126.99 : 540,217.82 = 107,387.70 : x - Step 2: Convert to fraction form
360,126.99/540,217.82 = 107,387.70/x - Step 3: Cross multiply
360,126.99x = 540,217.82 × 107,387.70 - Step 4: Simplify right side
360,126.99x = 58,012,749,188.81 - Step 5: Solve for x
x = 58,012,749,188.81/360,126.99 - Step 6: Final answer
x = 161,089.70
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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.