Finding the Fourth Proportional to 212,330.13, 318,544.40 and 72,088.75
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Solution
The fourth proportional to 212,330.13, 318,544.40 and 72,088.75 is: 108,149.83
Step by Step Solution
- Step 1: Write the proportion equation
212,330.13 : 318,544.40 = 72,088.75 : x - Step 2: Convert to fraction form
212,330.13/318,544.40 = 72,088.75/x - Step 3: Cross multiply
212,330.13x = 318,544.40 × 72,088.75 - Step 4: Simplify right side
212,330.13x = 22,963,467,615.50 - Step 5: Solve for x
x = 22,963,467,615.50/212,330.13 - Step 6: Final answer
x = 108,149.83
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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.