Finding the Fourth Proportional to 289,393.94, 434,239.10 and 137,762.63
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Solution
The fourth proportional to 289,393.94, 434,239.10 and 137,762.63 is: 206,714.49
Step by Step Solution
- Step 1: Write the proportion equation
289,393.94 : 434,239.10 = 137,762.63 : x - Step 2: Convert to fraction form
289,393.94/434,239.10 = 137,762.63/x - Step 3: Cross multiply
289,393.94x = 434,239.10 × 137,762.63 - Step 4: Simplify right side
289,393.94x = 59,821,918,638.04 - Step 5: Solve for x
x = 59,821,918,638.04/289,393.94 - Step 6: Final answer
x = 206,714.49
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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.