Finding the Fourth Proportional to 372,384.72, 513,893.16 and 202,619.88
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Solution
The fourth proportional to 372,384.72, 513,893.16 and 202,619.88 is: 279,616.66
Step by Step Solution
- Step 1: Write the proportion equation
372,384.72 : 513,893.16 = 202,619.88 : x - Step 2: Convert to fraction form
372,384.72/513,893.16 = 202,619.88/x - Step 3: Cross multiply
372,384.72x = 513,893.16 × 202,619.88 - Step 4: Simplify right side
372,384.72x = 104,124,970,412.02 - Step 5: Solve for x
x = 104,124,970,412.02/372,384.72 - Step 6: Final answer
x = 279,616.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.