Finding the Fourth Proportional to 198,619.79, 274,135.14 and 118,031.74
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Solution
The fourth proportional to 198,619.79, 274,135.14 and 118,031.74 is: 162,907.47
Step by Step Solution
- Step 1: Write the proportion equation
198,619.79 : 274,135.14 = 118,031.74 : x - Step 2: Convert to fraction form
198,619.79/274,135.14 = 118,031.74/x - Step 3: Cross multiply
198,619.79x = 274,135.14 × 118,031.74 - Step 4: Simplify right side
198,619.79x = 32,356,646,884.01 - Step 5: Solve for x
x = 32,356,646,884.01/198,619.79 - Step 6: Final answer
x = 162,907.47
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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.