Finding the Fourth Proportional to 372,374.88, 513,888.16 and 202,619.92
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Solution
The fourth proportional to 372,374.88, 513,888.16 and 202,619.92 is: 279,621.38
Step by Step Solution
- Step 1: Write the proportion equation
372,374.88 : 513,888.16 = 202,619.92 : x - Step 2: Convert to fraction form
372,374.88/513,888.16 = 202,619.92/x - Step 3: Cross multiply
372,374.88x = 513,888.16 × 202,619.92 - Step 4: Simplify right side
372,374.88x = 104,123,977,868.15 - Step 5: Solve for x
x = 104,123,977,868.15/372,374.88 - Step 6: Final answer
x = 279,621.38
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1.5x scale
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.