Finding the Fourth Proportional to 289,024.12, 432,975.36 and 212,984.71
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Solution
The fourth proportional to 289,024.12, 432,975.36 and 212,984.71 is: 319,063.79
Step by Step Solution
- Step 1: Write the proportion equation
289,024.12 : 432,975.36 = 212,984.71 : x - Step 2: Convert to fraction form
289,024.12/432,975.36 = 212,984.71/x - Step 3: Cross multiply
289,024.12x = 432,975.36 × 212,984.71 - Step 4: Simplify right side
289,024.12x = 92,217,131,203.00 - Step 5: Solve for x
x = 92,217,131,203.00/289,024.12 - Step 6: Final answer
x = 319,063.79
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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.