Finding the Fourth Proportional to 480,381.23, 720,674.76 and 143,448.41
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Solution
The fourth proportional to 480,381.23, 720,674.76 and 143,448.41 is: 215,203.35
Step by Step Solution
- Step 1: Write the proportion equation
480,381.23 : 720,674.76 = 143,448.41 : x - Step 2: Convert to fraction form
480,381.23/720,674.76 = 143,448.41/x - Step 3: Cross multiply
480,381.23x = 720,674.76 × 143,448.41 - Step 4: Simplify right side
480,381.23x = 103,379,648,449.13 - Step 5: Solve for x
x = 103,379,648,449.13/480,381.23 - Step 6: Final answer
x = 215,203.35
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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.