Finding the Fourth Proportional to 342,905.52, 514,213.68 and 129,637.44
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Solution
The fourth proportional to 342,905.52, 514,213.68 and 129,637.44 is: 194,401.49
Step by Step Solution
- Step 1: Write the proportion equation
342,905.52 : 514,213.68 = 129,637.44 : x - Step 2: Convert to fraction form
342,905.52/514,213.68 = 129,637.44/x - Step 3: Cross multiply
342,905.52x = 514,213.68 × 129,637.44 - Step 4: Simplify right side
342,905.52x = 66,661,345,088.18 - Step 5: Solve for x
x = 66,661,345,088.18/342,905.52 - Step 6: Final answer
x = 194,401.49
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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.